[ˈwiː.rʊs], [ˈviː.rus]
OriginVia rhotacism from Proto-Italic *weizos, from Proto-Indo-European *wisós (“fluidity, slime, poison”). Cognates include Sanskrit विष (viṣá), Ancient Greek ἰός (iós, “poison”), Tocharian B wase, and Middle Irish fí. The neuter gender, despite its nominative singular ending -us being typical of the masculine second declension, is possibly a relic of this term's inheritance from a neuter s-stem.
- declension-2venom (a poisonous substance secreted by animals or plants)
- declension-2a plant- or animal-sourced substance with medicinal or magical properties
- declension-2a liquid element that makes something taste or smell bitter or acrid
- declension-2bitterness, acrimony (of speech, manner or disposition)
- New-Latin, declension-2a virus (infectious organism)
- declension-2, masculine, singulara river in Hispania Tarraconensis, now the Anllóns
Formsvīrus(canonical, neuter, singular) · vīrī(genitive) · vīrus(nominative, singular) · vīrī(genitive, singular) · vīrō(dative, singular) · vīrus(accusative, singular) · vīrō(ablative, singular) · vīrus(singular, vocative) · vīra(nominative, plural) · vīrōrum(genitive, plural) · vīrīs(dative, plural) · vīra(accusative, plural) · vīrīs(ablative, plural) · vīra(plural, vocative) · Virī(genitive) · Virus(nominative, singular) · Virī(genitive, singular) · Virō(dative, singular) · Virum(accusative, singular) · Virō(ablative, singular)
Source: Wiktionary