Etymology

from the Japanese mamono (魔物), meaning “monster”, referring to the term "giant" used to describe the genome and virions of viruses in the family; the suffix -viridae for family taxa

from Ukrainian мрія [outdated transliteration: mriya], meaning dream; the suffix -viricetes for class taxa; connection unclear

from Yara, the mother of waters, a  mythological character of the Tupi indigenous people of Brazil; the suffix -viridae for family taxa; connection unclear

from the Middle English pokkes, meaning "pox", referring to the disease manifestation associated with some viruses in the taxon; the suffix -viricetes for class taxa

from Asfarviridae and "faustovirus" (a likely member of the order together with "pacmanviruses" and "kaumoebaviruses"); the suffix -virales for order taxa

from African swine fever and related viruses; the suffix -viridae for family taxa

from the name of a higher-rank taxon for poxviruses proposed by Lwoff and Tournier in 1966 (“Chitovirales”; from the Greek χιτών, (khitōn), a tunic garment, referring to the morphological structure of poxviruses); the suffix -virales for order taxa

from the Old English poc, meaning “pustule”, referring to the disease pox associated with some viruses of the family; the suffix -viridae for family taxa

from "precursor of certain plasmids", referring to the evolutionary relationship between viviricetessome viruses in the taxa and some plasmids; the suffix -viricota for phylum taxa

from polinton-like supergroup; the suffix -viricotina for subphylum taxa

from the Latin aqua, meaning water, and polinton (a reference to polintons first being associated with aquatic environments); the suffix -viricetes for class taxa

from the Greek  ἀρχός (archo), meaning "ruler, widespread", and polinton; the suffix -virales for order taxa

from phytoplankton and polinton; the suffix -viridae for family taxa

from the Latin pharingea, meaning throat (a reference to adenovirids infecting adenoids); the suffix -viricetes for class taxa

to honour Wallace P. Rowe, one of the co-discoverers of adenoviruses in 1953, with the addition of the vowel a; the suffix -virales for order taxa

from adenoid, the tissue where adenoviruses, originally named adenoid degeneration viruses, were discoverd in 1953; the suffix -viridae for family taxa

from the initial naming of adintoviruses as polinton “transposons", referring to the type B DNA polymerase (PolB) and retrovirus-like integrase genes encoded by members of the taxon; the suffix -viricetes for class taxa

from the Latin amphi, meaning both, and polinton (a reference to the two lifestyles of polintoviricetes as transposons or viruses); the suffix -virales for order taxa

from the Greek εὖ (eu) meaning true, and polinton (a reference to these viruses being the first polintoviricetes to be classified); the suffix ‑viridae for family taxa

from virophage; the suffix -viricetes for class taxa

from divergent penton proteins, referring to the exceptional genome organisation of members of the taxon; the suffix ‑virales for order taxa

from rumen virophages, referring to the source of members in the family; the suffix ‑viridae for family taxa

from large virus dependent or associated, referring to the dependence on, or association with, a large dsDNA virus of the family Mimiviridae; the suffix -virales for order taxa

from Maverick-related virus and the suffix -viro, referring to the first isolated member of the taxon; the suffix ‑viridae for family taxa

from Mimivirus dependent or associated, referring to the replication of taxon members in association with a mimivirus; the suffix ‑virales for order taxa

from Sputnik virus 1, and the addition of the vowel o, referring to the first isolated member of the family; the suffix ‑viridae for family taxa

from the Lithuanian priklausomas, meaning "dependent", a reference to the family Lavidaviridae (large virus dependent associated) a member of the taxon; the suffix -virales for order taxa

from Mary Burton Gulliver, the wife of Lemuel Gulliver in Gulliver’s Travels (a novel by Jonathon Swift) and the addition of the suffix -viro, referring to members of the family as most closely related to the large virophages; the suffix ‑viridae for family taxa

from Dishui Lake in China, where the first member of the family, Chlorella virophage isolate SW01, was obtained and the addition of the suffix -viro, referring to members of the family as related to the large virophages; the suffix ‑viridae for family taxa

from Lemuel Gulliver, the main character of Gulliver’s Travels (a novel by Jonathon Swift) and the addition of the suffix -viro, referring to members of the family as “giant" virophages but still relatively small compared to their associated giant viruses; the suffix ‑viridae for family taxa

from the Latin omni meaning “all or everywhere”, the Ancient Greek λίμνη (límnē) meaning "lake" and the addition of the suffix -viro, referring to  freshwater environments, since members of this virophage family were detected across a broad geographic range of freshwater lakes; the suffix ‑viridae for family taxa

from predecessor of polintoviricetes; the suffix -viricotina for subphylum taxa

from tectivirid-like, referring to viruses of the family Tectiviridae; the suffix -viricetes for class taxa

from Kalamazoo, USA, where Pseudomonas phage PRD1 a member of the taxon was first isolated ; the suffix -virales for order taxa

from the Latin tectus, meaning "covered",  referring to a lipid envelope covering the DNA compartment and separating the genomic DNA from a protein capsid in viruses of the family; the suffix -viridae for family taxa

from NALDV meaning "nuclear arthropod large DNA viruses; the suffix ‑viricetes for class taxa

from “late expression factor”, referring to genes identified in a screen for ORFs required for, or supporting, late-phase baculovirus transcription; the suffix -virales for order taxa

from the Latin baculus, meaning “stick", referring to the morphology of virions of viruses in the family; the suffix ‑viridae for family taxa

from the Latin filamentum, meaning “filament”, referring to the filamentous-shape of virus particles observed in infected tissues; the suffix –viridae for family taxa.

from the Ancient Greek ὑπέρ (hupér), meaning, “excessive” and τροφή (trophḗ), meaning “nourishment", and sialoadenitis, meaning salivary gland inflammation referring to the salivary gland hypertrophy in  hosts infected by viruses in the family; the suffix ‑viridae for family taxa

from the Latin nudus, meaning "naked", part of a previously used name nudibaculovirus, describing viruses with rod-shaped nucleocapsids lacking a protein matrix such as polyhedrin or granulin; the suffix ‑viridae for family taxa

from the Hebrew nima, meaning “thread”, referring to the thread- or tail-like polar extension (appendage) on virions of some viruses in the family; the suffix ‑viridae for family taxa

from the Ancient Greek ἄλφα (álpha), the first letter of the Greek alphabet and the Latin satellit, meaning "attendent", referring to mobile genetic elements that are dependent upon a helper virus to spread. The suffix -satelittidae is used for satelitte family taxa

from the Latin ampulla, meaning "bottle", referring to the unique bottle-shaped morphology of the virion; the suffix ‑viridae for family taxa

from a member of the family, Avocado sunblotch viroid, an infectious agent consisting only of naked RNA; the suffix -viroidae is used for viroid family taxa

from the host genus name Bartonella and gene transfer agent; the suffix -viriformidae is used for viriform family taxa

from the Latin bi meaning "two"  and the Latin cauda meaning " tail", referring to the virion morhologlogy of viruses in the family; the suffix ‑viridae for family taxa

from the host genus name Brachyspira and gene transfer agent; the suffix -viriformidae is used for viriform family taxa

from Latin clava, meaning "club" or "stick", referring to the rigid, bacilliform virion morphology of viruses in the family; the suffix ‑viridae for family taxa

from the Greek Eureka meaning “I have found it”, also the name of common variety of lemons, reminiscent of the virion shape; the suffix ‑viridae for family taxa