Etymology of Taxon Names

The information below provides a list containing descriptions of the origins of ICTV taxon names starting at the rank of realm and going down to the rank of family. This information is derived from the proposals that were submitted when each taxon was created. Links to these proposals, links to ICTV report chapters, and links to publications (through PMIDs) are provided when available.

We thank Stuart Siddell for compiling this list of name origins. Etymological information for taxa below the rank of family, can be found in the relevant ICTV Online (10th) Report chapters. If you have any comments or corrections, please contact us by sending an email to [email protected].

Filter the list of name origins using the selection options below:

Enter all or part of a taxon name (family rank or higher)

Riboviria

Taxon: Mayoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Martellivirales | Mayoviridae
Proposal: 2019.006G.zip
Report Chapter: Mayoviridae

Etymology: to honour the British plant virologist Michael A Mayo, past Life Member of the ICTV; the suffix -viridae for family taxa

Taxon: Tobaliviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Martellivirales | Tobaliviridae
Proposal: 2025.008F.Tobaliviridae_newfam.zip

Etymology: from tobamo-like, referring to the similarities in genome organization and possible expression strategy with tobamoviruses (family Virgaviridae); the suffix ‑viridae for family taxa

Taxon: Togaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Martellivirales | Togaviridae
Proposal: Ratification_1974.pdf
Report Chapter: Togaviridae
PubMed ID: 7968923

Etymology: from the Latin toga, meaning “cloak”, possibly referring to the enveloped virion of viruses in the family; the suffix -viridae for family taxa

Taxon: Virgaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Martellivirales | Virgaviridae
Proposal: 2007.036-8P.Virgaviridae.pdf
Report Chapter: Virgaviridae

Etymology: from the Latin virga, meaning "rod", referring to the virion morphology of viruses in the family; the suffix -viridae for family taxa

Taxon: Tymovirales Rank: order
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Tymovirales
Proposal: 2007.027a-fP.v2.Tymovirales.pdf

Etymology: from turnip yellow mosaic virus, a member of the taxon; the suffix -virales for order taxa

Taxon: Alphaflexiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Tymovirales | Alphaflexiviridae
Proposal: 2007.018-20P.v2.Alphaflexiviridae.pdf
Report Chapter: Alphaflexiviridae

Etymology: from the Ancient Greek ἄλφα (álpha), the first letter of the Greek alphabet, and flexi, referring to the first family created from the division of the old family Flexiviridae, a group of filamentous and highly flexible viruses; the suffix -viridae for family taxa

Taxon: Betaflexiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Tymovirales | Betaflexiviridae
Proposal: 2007.021-023P.v2.Betaflexiviridae.pdf
Report Chapter: Betaflexiviridae

Etymology: from the Ancient Greek βῆτα (bêta), the second letter of the Greek alphabet, and flexi, referring to the second family created from the division of the old family Flexiviridae, a group of filamentous and highly flexible viruses; the suffix -viridae for family taxa

Taxon: Deltaflexiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Tymovirales | Deltaflexiviridae
Proposal: 2017.020P.A.v1.Deltaflexiviridae.zip
Report Chapter: Deltaflexiviridae

Etymology: from the Ancient Greek δέλτα (délta), the fourth letter of the Greek alphabet, and flexi, referring to the fourth family created from the division of the old family Flexiviridae, a group of filamentous and highly flexible viruses; the suffix -viridae for family taxa

Taxon: Gammaflexiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Tymovirales | Gammaflexiviridae
Proposal: 2007.024-026P.v2.Gammaflexiviridae.pdf
Report Chapter: Gammaflexiviridae

Etymology: from the Ancient Greek γάμμα (gámma), the third letter of the Greek alphabet, and flexi, referring to the third family created from the division of the old family Flexiviridae, a group of filamentous and highly flexible viruses; the suffix -viridae for family taxa

Taxon: Tymoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Tymovirales | Tymoviridae
Proposal: Ratification_2002a.pdf
PubMed ID: 12209322

Etymology: from turnip yellow mosaic virus, a member of the family; the suffix -viridae for family taxa

Taxon: Flasuviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Flasuviricetes
Proposal: 2019.006G.zip

Etymology: from flavivirus supergroup, referring to a historical name for some members of the taxon; the suffix -viricetes for class taxa

Taxon: Amarillovirales Rank: order
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Flasuviricetes | Amarillovirales
Proposal: 2019.006G.zip

Etymology: from the Spanish amarillo, meaning "yellow", a reference to yellow fever virus, a member of the taxon; the suffix -virales for order taxa

Taxon: Flaviviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Flasuviricetes | Amarillovirales | Flaviviridae
Proposal: Ratification_1984.pdf
Report Chapter: Flaviviridae
PubMed ID: 3000978

Etymology: from the Latin flavus, meaning “yellow”, referring to yellow fever, the disease caused by yellow fever virus, a member of the family; the suffix -viridae for family taxa

Taxon: Hepaciviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Flasuviricetes | Amarillovirales | Hepaciviridae
Proposal: 2025.006S.Amarillovirales_3reorgfam.zip

Etymology: from the Ancient Greek ἧπαρ (hepar), meaning "liver" and the identifying letter from hepatitis C virus; the suffix ‑viridae for family taxa

Taxon: Pestiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Flasuviricetes | Amarillovirales | Pestiviridae
Proposal: 2025.006S.Amarillovirales_3reorgfam.zip

Etymology: from the Latin pestis, meaning “plague”, referring to the devastating diseases associated with members of the family; the suffix ‑viridae for family taxa

Taxon: Magsaviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Magsaviricetes
Proposal: 2019.006G.zip

Etymology: from Mag 115, the original designation of Nodamura virus, and Saitama Prefecture, Japan, where studies were done that led to the discovery of the virus ; the suffix -viricetes for class taxa

Taxon: Nodamuvirales Rank: order
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Magsaviricetes | Nodamuvirales
Proposal: 2019.006G.zip

Etymology: from Nodamura virus, a member of the taxon, first isolated in the village of Nodamura, Japan; the suffix -virales for order taxa

Taxon: Nodaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Magsaviricetes | Nodamuvirales | Nodaviridae
Proposal: Ratification_1981.pdf
Report Chapter: Nodaviridae
PubMed ID: 11457991

Etymology: from Nodamura virus, a member of the family, first isolated in the village of Nodamura, Japan; the suffix -viridae for family taxa

Taxon: Sinhaliviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Magsaviricetes | Nodamuvirales | Sinhaliviridae
Proposal: 2019.006G.zip
Report Chapter: Sinhaliviridae

Etymology: from Sinaivirus, a defunct name for a member of the family and Halictivirus, an unclassified, closely related virus; the suffix -viridae for family taxa

Taxon: Tolucaviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Tolucaviricetes
Proposal: 2019.006G.zip

Etymology: from Tombusviridae, Luteovirus and Carmotetraviridae, three taxa included in the taxon; the suffix -viricetes for class taxa

Taxon: Tolivirales Rank: order
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Tolucaviricetes | Tolivirales
Proposal: 2019.006G.zip

Etymology: from tombusvirus-like, referring to Tombusviridae, a family included in the taxon ; the suffix -virales for order taxa

Taxon: Ambiguiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Tolucaviricetes | Tolivirales | Ambiguiviridae
Proposal: 2025.005F.Ambiguiviridae_newfam.zip

Etymology: both a reference to the unusual (ambiguous) nature of the GDN triad within the RNA-directed RNA polymerase motif of these (+)ssRNA viruses and the ambiguity related to the host of Diaporthe RNA virus , the first virus described for this group; the suffix ‑viridae for family taxa

Taxon: Carmotetraviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Tolucaviricetes | Tolivirales | Carmotetraviridae
Proposal: 2010.001a-qI.A.v4.Tetraviridae.pdf
Report Chapter: Carmotetraviridae

Etymology: from the type of replicase (RdRP) characteristic of carmo-like (from carnation mottle) plant viruses and from the Ancient Greek τετρα (tetra), the Greek cardinal 4, referring to the T=4 capsid architecture of viruses in the family; the suffix -viridae for family taxa

Taxon: Tombusviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Tolucaviricetes | Tolivirales | Tombusviridae
Proposal: Ratification_1993.pdf
PubMed ID: 7817878

Etymology: from tomato bushy stunt virus, a member of the family; the suffix -viridae for family taxa

Taxon: Lenarviricota Rank: phylum
Lineage: Riboviria | Orthornavirae | Lenarviricota
Proposal: 2019.006G.zip

Etymology: from Leviviridae and Narnaviridae, two families included in the taxon; the suffix -viricota for phylum taxa

Taxon: Amabiliviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Lenarviricota | Amabiliviricetes
Proposal: 2019.006G.zip

Etymology: from the Zulu amabili, meaning "twenty", referring to Saccharomyces 20S RNA narnavirus, a member of the taxon; the suffix -viricetes for class taxa

Taxon: Wolframvirales Rank: order
Lineage: Riboviria | Orthornavirae | Lenarviricota | Amabiliviricetes | Wolframvirales
Proposal: 2019.006G.zip

Etymology: from the chemical element wolfram, (also known as tungsten, abbreviation: W), referring to the discovery of Saccharomyces 20S RNA narnavirus by sequencing "W dsRNA" of Saccharomyces cerevisiae; the suffix -virales for order taxa

Taxon: Narnaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Amabiliviricetes | Wolframvirales | Narnaviridae
Proposal: Ratification_1998.pdf
Report Chapter: Narnaviridae
PubMed ID: 23498906

Etymology: from naked and RNA for ribonucleic acid, referring to the fact that viruses of the family have no true virion; the suffix -viridae for family taxa

Taxon: Splipalmiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Amabiliviricetes | Wolframvirales | Splipalmiviridae
Proposal: 2024.003F.Splipalmiviridae_newfam.zip

Etymology: referring to the split nature of the RdRP palm sub-domain; the suffix -viridae for family taxa

Taxon: Howeltoviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Lenarviricota | Howeltoviricetes
Proposal: 2019.006G.zip

Etymology: from Howell Township, New Jersey, USA, where a fungus (Cryphonectria parasitica) was isolated that was infected with a mitovirus; the suffix -viricetes for class taxa

Taxon: Cryppavirales Rank: order
Lineage: Riboviria | Orthornavirae | Lenarviricota | Howeltoviricetes | Cryppavirales
Proposal: 2019.006G.zip

Etymology: from Cryphonectria parasitica, the species of fungus in which the first mitovirus was discovered; the suffix -virales for order taxa

Taxon: Mitoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Howeltoviricetes | Cryppavirales | Mitoviridae
Proposal: 2019.006G.zip

Etymology: from the Greek mitos, meaning "thread", referring to replication of viruses in the family in the mitochondria of host fungi; the suffix -viridae for family taxa

Taxon: Leviviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Lenarviricota | Leviviricetes
Proposal: 2020.095B.R.Leviviricetes.zip

Etymology: from the Latin levi, meaning "light", referring to Leviviridae, a family included in the taxon; the suffix -viricetes for class taxa

Taxon: Norzivirales Rank: order
Lineage: Riboviria | Orthornavirae | Lenarviricota | Leviviricetes | Norzivirales
Proposal: 2020.095B.R.Leviviricetes.zip

Etymology: to honour Norton Zinder, who isolated the first bacterial virus that contained RNA as its genetic material; the suffix -virales for order taxa

Taxon: Atkinsviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Leviviricetes | Norzivirales | Atkinsviridae
Proposal: 2020.095B.R.Leviviricetes.zip

Etymology: to honour the Irish geneticist, John Atkins, for his discovery of the lysin protein from Escherichia virus MS2; the suffix -viridae for family taxa

Taxon: Duinviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Leviviricetes | Norzivirales | Duinviridae
Proposal: 2020.095B.R.Leviviricetes.zip

Etymology: to honour the Dutch scientist, Jan van Duin, for his discoveries related to novel bacterial ssRNA viruses; the suffix -viridae for family taxa

Taxon: Fiersviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Leviviricetes | Norzivirales | Fiersviridae
Proposal: 2020.095B.R.Leviviricetes.zip

Etymology: to honour the Belgian molecular biologist, Walter Fiers, who sequenced the first gene and genome of any virus, phage MS2; the suffix -viridae for family taxa

Taxon: Solspiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Leviviricetes | Norzivirales | Solspiviridae
Proposal: 2020.095B.R.Leviviricetes.zip

Etymology: to honour the American molecular biologist Sol Spiegelman, who evolved a RNA chain of only 218 nucleotides that could be efficiently replicated by an exogenous RdRP; the suffix -viridae for family taxa

Taxon: Timlovirales Rank: order
Lineage: Riboviria | Orthornavirae | Lenarviricota | Leviviricetes | Timlovirales
Proposal: 2020.095B.R.Leviviricetes.zip

Etymology: to honour Timothy Loeb who, with Norton Zinder, isolated the first bacterial positive-sense, single-stranded virus; the suffix -virales for order taxa

Taxon: Blumeviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Leviviricetes | Timlovirales | Blumeviridae
Proposal: 2020.095B.R.Leviviricetes.zip

Etymology: to honour the American molecular biologist, Thomas Blumenthal, for his findings on the replication of bacterial ssRNA viruses, in particular the structure and function of the viral replicase; the suffix -viridae for family taxa

Taxon: Steitzviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Leviviricetes | Timlovirales | Steitzviridae
Proposal: 2020.095B.R.Leviviricetes.zip

Etymology: to honour the American biochemist Joan Argetsinger Steitz for her delineation of an initiation sequence that is central to modern-day ribosome profiling; the suffix -viridae for family taxa

Taxon: Miaviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Lenarviricota | Miaviricetes
Proposal: 2019.006G.zip

Etymology: from ourmiavirus, itself from Ourmia (Urmia, Orumieh) a city in north-western Iran where Ourmia melon virus, a member of the taxon, was first found; the suffix -viricetes for class taxa

Taxon: Ourlivirales Rank: order
Lineage: Riboviria | Orthornavirae | Lenarviricota | Miaviricetes | Ourlivirales
Proposal: 2019.006G.zip

Etymology: from ourmiavirus-like, referring to ourmiaviruses, members of the taxon; the suffix -virales for order taxa

Taxon: Botourmiaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Miaviricetes | Ourlivirales | Botourmiaviridae
Proposal: 2018.003F.A.Botourmiaviridae.zip
Report Chapter: Botourmiaviridae

Etymology: from Botrytis, a genus of fungal hosts, and ourmia-like from Ourmia, a city in north-western Iran where Ourmia melon virus, a member of the family, was first found; the suffix -viridae for family taxa

Taxon: Ourmiaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Miaviricetes | Ourlivirales | Ourmiaviridae
Proposal: 2025.013F.Botourmiaviridae_reorgan.zip

Etymology: from the genus Ourmiavirus, a child taxon of the family, referring to Ourmia, a city in north-western Iran where Ourmia melon virus was first found; the suffix ‑viridae for family taxa

Taxon: Rhizouliviridae Rank: family
Lineage: Riboviria | Orthornavirae | Lenarviricota | Miaviricetes | Ourlivirales | Rhizouliviridae
Proposal: 2025.013F.Botourmiaviridae_reorgan.zip

Etymology: from the genus Rhizoulivirus, a child taxon of the family, referring to a host, Rhizoctonia sp.; the suffix ‑viridae for family taxa

Taxon: Negarnaviricota Rank: phylum
Lineage: Riboviria | Orthornavirae | Negarnaviricota
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: from the Latin nega, meaning "to deny (negate)" and RNA for ribonucleic acid, referring to the genomic RNA polarity of viruses in the taxon; the suffix -viricota for phylum taxa

Taxon: Haploviricotina Rank: subphylum
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: from the Ancient Greek ἁπλόoV (haplo), meaning "simple", referring to the generally mono-segmented genome of viruses in the taxon; the suffix -viricotina for subphylum taxa

Taxon: Chunqiuviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Chunqiuviricetes
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: from Chūnqiū Shídài (春秋), the Spring and Autumn Period in which Qín and Yuè were states in China; the suffix -viricetes for class taxa; connection unclear

Taxon: Muvirales Rank: order
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Chunqiuviricetes | Muvirales
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: from () the Duke of Qín, Qín being the ancient Chinese state during the Spring and Autumn Period; the suffix -virales for order taxa; connection unclear

Taxon: Qinviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Chunqiuviricetes | Muvirales | Qinviridae
Proposal: 2017.006M.A.v2.Negarnaviricota.zip
Report Chapter: Qinviridae

Etymology: from the Qín () State during the Spring and Autumn of Chinese history; the suffix -viridae for family taxa; connection unclear

Taxon: Milneviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Milneviricetes
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: to honour RG Milne, senior author of the first paper describing ophioviruses; the suffix -viricetes for class taxa

Taxon: Naedrevirales Rank: order
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Milneviricetes | Naedrevirales
Proposal: 2023.007P.Serpentovirales_1nord_rename.zip

Etymology: from Old English nædre (naedre), meaning "serpent", referring to the earlier name of the order, Serpentovirales, describing the serpent-like appearance of virions of viruses in the taxon; the suffix -virales for order taxa

Taxon: Aspiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Milneviricetes | Naedrevirales | Aspiviridae
Proposal: 2017.006M.A.v2.Negarnaviricota.zip
Report Chapter: Ophioviridae

Etymology: from the Latin aspis, meaning “viper" or "snake”, referring to the morphology of virions of viruses in the family; the suffix -viridae for family taxa

Taxon: Monjiviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: from Mononegavirales and Jingchuvirales, two orders in the taxon; the suffix -viricetes for class taxa

Taxon: Jingchuvirales Rank: order
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Jingchuvirales
Proposal: 2017.006M.A.v2.Negarnaviricota.zip
Report Chapter: Jingchuvirales

Etymology: from Jīngchǔ (), a synonym for Chǔ (), a state in ancient China; the suffix -virales for order taxa; connection unclear

Taxon: Aliusviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Jingchuvirales | Aliusviridae
Proposal: 2020.026M.R.Jingchuvirales.zip
Report Chapter: Aliusviridae

Etymology: phonetically from the Ancient Greek ἄλλος (állos), meaning "other" or "another", possibly referring to the numerous families in the class Caudoviricetes; the suffix -viridae for family taxa

Taxon: Chuviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Jingchuvirales | Chuviridae
Proposal: 2017.006M.A.v2.Negarnaviricota.zip
Report Chapter: Chuviridae

Etymology: from Chǔ () , a state during the Spring and Autumn Period of Chinese history; the suffix -viridae for family taxa; connection unclear

Taxon: Crepuscuviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Jingchuvirales | Crepuscuviridae
Proposal: 2020.026M.R.Jingchuvirales.zip
Report Chapter: Crepuscuviridae

Etymology: from the Latin crepusculum, meaning “twilight" or "dim”, possibly because megalopteran chu-related virus 119, a member of the family, was isolated from a corydalid fly species whose larvae remain under cover during the day but move in search of food at night; the suffix -viridae for family taxa

Taxon: Myriaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Jingchuvirales | Myriaviridae
Proposal: 2020.026M.R.Jingchuvirales.zip
Report Chapter: Myriaviridae

Etymology: from the Greek μύριοι (mýrioi), meaning "myriad", a now obsolete decimal metric prefix denoting a factor of 104 (ten thousand), referring to the myriapod arthropod (millipedes and centipedes) hosts of some viruses in the family; the suffix -viridae for family taxa

Taxon: Natareviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Jingchuvirales | Natareviridae
Proposal: 2020.026M.R.Jingchuvirales.zip
Report Chapter: Natareviridae

Etymology: from the Latin natare, meaning “swim" or "float”, possibly because Wēnzhōu crab virus 3 was isolated from Charybdis japonica, the Asian paddle crab, a species of swimming crab; the suffix -viridae for family taxa

Taxon: Mononegavirales Rank: order
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales
Proposal: Ratification_1990.pdf

Etymology: from the Ancient Greek μόνος (monos), meaning "single", and the Latin negare, meaning "to deny (negate)", referring to the polarity and generally mono-segmented genome of viruses in the taxon ; the suffix -virales for order taxa

Taxon: Artoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Artoviridae
Proposal: 2017.016M.A.v3.Mononegavirales.zip
Report Chapter: Artoviridae

Etymology: from arthropod, referring to the host phylum of viruses in the family; the suffix -viridae for family taxa

Taxon: Bornaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Bornaviridae
Proposal: Ratification_1996.pdf
Report Chapter: Bornaviridae

Etymology: from the German city of Borna, where many animals died of sporadic encephalopathy caused by Borna disease virus 1, a member of the family; the suffix -viridae for family taxa

Taxon: Filoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Filoviridae
Proposal: Ratification_1987.pdf
Report Chapter: Filoviridae
PubMed ID: 7118520

Etymology: from the Latin filum, meaning “thread,” referring to the morphology of virions of members of the family; the suffix -viridae for family taxa

Taxon: Lispiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Lispiviridae
Proposal: 2017.016M.A.v3.Mononegavirales.zip
Report Chapter: Lispiviridae

Etymology: from shì spider virus 2, a member of the family; the suffix -viridae for family taxa

Taxon: Mymonaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Mymonaviridae
Proposal: 2015.008a-gM.A.v3.Mymonaviridae.pdf
Report Chapter: Mymonaviridae

Etymology: from Mycota (fungi), referring to the host of viruses in the family, and Mononegavirales, the order that includes this virus family; the suffix -viridae for family taxa

Taxon: Nyamiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Nyamiviridae
Proposal: 2013.002a-hV.A.v1.Nyamiviridae.pdf
Report Chapter: Nyamiviridae

Etymology: from Nyamanini Pan, where Nyamanini virus was isolated and Midway Atoll, where Midway virus was isolated, both members of the virus family; the suffix -viridae for family taxa

Taxon: Paramyxoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Paramyxoviridae
Proposal: Ratification_1975.pdf
Report Chapter: Paramyxoviridae
PubMed ID: 681143

Etymology: from the Ancient Greek παρά (pará), meaning “beside" and the Greek μύξα, (mýxa), meaning"mucus", referring to the association of some members of the family with respiratory infection; the suffix -viridae for family taxa

Taxon: Pneumoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Pneumoviridae
Proposal: Ratification_1990.pdf
Report Chapter: Pneumoviridae
PubMed ID: 562558

Etymology: from the Greek pneuma, meaning “breath”, referring to the transmission of viruses in this family by contact and airborne routes; the suffix -viridae for family taxa

Taxon: Rhabdoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Rhabdoviridae
Proposal: ICTV 1st Report.pdf
Report Chapter: Rhabdoviridae
PubMed ID: 3550409

Etymology: from the Ancient Greek ῥάβδος (rhabdos), meaning "rod", referring to the virion morphology of viruses in the family; the suffix -viridae for family taxa

Taxon: Lyssavirus Rank: genus
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Rhabdoviridae | Alpharhabdovirinae | Lyssavirus
Report Chapter: Rhabdoviridae

Etymology: Greek mythology: Lyssa (Λυσσα) was a goddess, or spirit, of rage, fury, raging madness, and frenzy

Taxon: Sunviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Sunviridae
Proposal: 2015.009a-gM.A.v4.Sunviridae.pdf
Report Chapter: Sunviridae

Etymology: from Sunshine Coast virus, a member of the family; the suffix -viridae for family taxa

Taxon: Xinmoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Monjiviricetes | Mononegavirales | Xinmoviridae
Proposal: 2017.016M.A.v3.Mononegavirales.zip
Report Chapter: Xinmoviridae

Etymology: from Xīnchéng mosquito virus, a member of the family; the suffix -viridae for family taxa

Taxon: Yunchangviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Yunchangviricetes
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: from Yǔncháng (允常), the father of Gōujiàn, the future King of the ancient Chinese state Yuè; the suffix -viricetes for class taxa; connection unclear

Taxon: Goujianvirales Rank: order
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Yunchangviricetes | Goujianvirales
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: from Gōujiàn (勾踐), the king of the ancient Chinese Yuè State, during the Spring and Autumn Period; the suffix -virales for order taxa; connection unclear

Taxon: Yueviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Haploviricotina | Yunchangviricetes | Goujianvirales | Yueviridae
Proposal: 2017.006M.A.v2.Negarnaviricota.zip
Report Chapter: Yueviridae

Etymology: from Yuè (), a state during the Spring and Autumn Period of Chinese history; the suffix -viridae for family taxa; connection unclear

Taxon: Polyploviricotina Rank: subphylum
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: from the Ancient Greek πολύπλοκοV (polyplo), meaning "complex", referring to the generally multi-segmented genome of viruses in the taxon; the suffix -viricotina for subphylum taxa

Taxon: Bunyaviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes
Proposal: 2023.024M.Bunyaviricetes.zip

Etymology: from Bunyamwera virus (an orthobunyavirus), a member of the taxon; the suffix -viricetes for class taxa

Taxon: Elliovirales Rank: order
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Elliovirales
Proposal: 2023.024M.Bunyaviricetes.zip

Etymology: to honour Richard Elliott, a pioneer of bunyavirus molecular virology; the suffix -virales for order taxa

Taxon: Cruliviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Elliovirales | Cruliviridae
Proposal: 2017.012M.A.v2.Bunyavirales.zip
Report Chapter: Cruliviridae

Etymology: from crustacean lincruvirus (an obsolete species name), referring to Wēnlǐng crustacean virus 9, a member of the family; the suffix -viridae for family taxa

Taxon: Fimoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Elliovirales | Fimoviridae
Proposal: 2016.030a-vM.A.v6.Bunyavirales.pdf
Report Chapter: Fimoviridae

Etymology: from fimosaic virus, a member of the family; the suffix -viridae for family taxa

Taxon: Hantaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Elliovirales | Hantaviridae
Proposal: 2016.030a-vM.A.v6.Bunyavirales.pdf
Report Chapter: Hantaviridae

Etymology: from the genus name Orthohantavirus, referring to the River Hantan (South Korea) where Hantaan virus, a member of the family, was discovered; the suffix -viridae for family taxa

Taxon: Peribunyaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Elliovirales | Peribunyaviridae
Proposal: Ratification_1975.pdf
Report Chapter: Peribunyaviridae
PubMed ID: 6165702

Etymology: from the Ancient Greek περί (perí), meaning "around", and Bunyamwera virus, a member of the family named after Bunyamwera village (Uganda) where the virus was first isolated; the suffix -viridae for family taxa

Taxon: Phasmaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Elliovirales | Phasmaviridae
Proposal: 2016.030a-vM.A.v6.Bunyavirales.pdf
Report Chapter: Phasmaviridae

Etymology: from the genus name Orthophasmavirus, referring to phantom midges, host of the first isolated viruses of the family; the suffix -viridae for family taxa

Taxon: Tospoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Elliovirales | Tospoviridae
Proposal: 2016.030a-vM.A.v6.Bunyavirales.pdf

Etymology: from the genus name Orthotospovirus (from tomato spotted wilt virus), a genus in the family; the suffix -viridae for family taxa

Taxon: Tulasviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Elliovirales | Tulasviridae
Proposal: 2021.040M.R.Bunyavirales_2nfam_2ngen_6nsp.zip
Report Chapter: Tulasviridae

Etymology: from Tulasnella, the genus of the host fungus of Tulasnella bunyavirales-like virus 1, a member of the family; the suffix -viridae for family taxa

Taxon: Hareavirales Rank: order
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Hareavirales
Proposal: 2023.024M.Bunyaviricetes.zip

Etymology: from the Basque harea meaning “sand”, referring to arenavirids (arena being Spanish for sand) and sandfly-borne phenuivirids, viruses in the order; the suffix ‑virales for order taxa

Taxon: Arenaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Hareavirales | Arenaviridae
Proposal: Ratification_1975.pdf
Report Chapter: Arenaviridae
PubMed ID: 4986852

Etymology: from the Spanish arena, meaning “sand", referring to the appearance of mammarenavirus particles observed by electron-microscopy; the suffix -viridae for family taxa

Taxon: Discoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Hareavirales | Discoviridae
Proposal: 2021.040M.R.Bunyavirales_2nfam_2ngen_6nsp.zip
Report Chapter: Discoviridae

Etymology: from DiscVir, the name of the software used to discover some viruses of this family and addition of the vowel o; the suffix -viridae for family taxa

Taxon: Konkoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Hareavirales | Konkoviridae
Proposal: 2023.006M.Bunyavirales_1nfam_1ngen_1nsp.zip
Report Chapter: Konkoviridae

Etymology: from the Japanese Ukonko (鬱金香), meaning "tulip", referring to the host of a member of the family; the suffix ‑viridae for family taxa

Taxon: Leishbuviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Hareavirales | Leishbuviridae
Proposal: 2018.017M.A.v4.Bunyavirales_2fam5gen.zip
Report Chapter: Leishbuviridae

Etymology: from Leishmania and bunyavirus, referring to a genus of Trypanosomatidae, that includes the host of isolation of Leptomonas moramango virus, and the order Bunyavirales, which includes the virus family; the suffix -viridae for family taxa

Taxon: Mypoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Hareavirales | Mypoviridae
Proposal: 2017.012M.A.v2.Bunyavirales.zip
Report Chapter: Mypoviridae

Etymology: from Húběi myriapoda virus 5, a member of the family; the suffix -viridae for family taxa

Taxon: Nairoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Hareavirales | Nairoviridae
Proposal: 2016.030a-vM.A.v6.Bunyavirales.pdf
Report Chapter: Nairoviridae

Etymology: from Orthonairovirus, a genus in the family, referring to Nairobi (Kenya) where Nairobi sheep disease virus, a member of the family, was first isolated; the suffix -viridae for family taxa

Taxon: Phenuiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Hareavirales | Phenuiviridae
Proposal: 2016.030a-vM.A.v6.Bunyavirales.pdf
Report Chapter: Phenuiviridae

Etymology: from the genus Phlebovirus, referring to phlebotomine vectors of sandfly fever group viruses, derived from the Ancient Greek φλέψ (phléps), meaning “vein”, and the genus Tenuivirus, from the Latin tenuis, meaning “thin”, describing the virion morphology of viruses in the genus, both genera in the family; the suffix -viridae for family taxa

Taxon: Tosoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Hareavirales | Tosoviridae
Proposal: 2022.010M.Fraservirus_1nfam_1ngen_1nsp.zip
Report Chapter: Tosoviridae

Etymology: from Tosohatchee Wildlife Management Area, Florida, USA, where the first member of the family was isolated; the suffix -viridae for family taxa

Taxon: Wupedeviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Bunyaviricetes | Hareavirales | Wupedeviridae
Proposal: 2017.012M.A.v2.Bunyavirales.zip
Report Chapter: Wupedeviridae

Etymology: frfom hàn millipede virus 2, a member of the family; the suffix -viridae for family taxa

Taxon: Insthoviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Insthoviricetes
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: from Alphainfluenzavirus, Isavirus and Thogotovirus, three genera in the taxon; the suffix -viricetes for class taxa

Taxon: Articulavirales Rank: order
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Insthoviricetes | Articulavirales
Proposal: 2017.006M.A.v2.Negarnaviricota.zip

Etymology: from the Latin articulata, meaning "segmented", referring to the segmented genome of viruses in the taxon; the suffix -virales for order taxa

Taxon: Amnoonviridae Rank: family
Lineage: Riboviria | Orthornavirae | Negarnaviricota | Polyploviricotina | Insthoviricetes | Articulavirales | Amnoonviridae
Proposal: 2017.006M.A.v2.Negarnaviricota.zip
Report Chapter: Amnoonviridae

Etymology: phonetically from the Hebrew אַמְנוּן (amnun) for the fish tilapia, referring to tilapia lake virus, a member of this family; the suffix -viridae for family taxa