The Proto-Indo-European word *h₂ewi- (nom. h₂ewi-s, gen. h₂wei-s)
Word *h₂ewi- (nom. h₂ewi-s, gen. h₂wei-s)
Meaning bird
Synonyms *hₐewei-, *(s)p(e)iko/ehₐ

Comments
Lat. avis, Av. vīš, Skr. vis, Arm. hav, Welsh hwyad, Gk. aetos, Lith. višta, Ltv. vista, Umbrian avif, Ir. /aoi

Other words that might be of interest
*ker-1, kor-, kr- ‘a kind of sound, crane, crow’, *kVr-C- ‘crow, raven’, *ĝhan-s ‘goose’, *hₐn̥hₐti- ‘duck’, *h₃or-no- ‘eagle’, *k̂órw-eh₂- ‘crow’, *ĝhy-~ĝyei- ‘bird of prey, kite?’, *wer- ‘crow’, *k̂yeino- ‘bird of prey, kite’, *pad- ‘duck, teal?’, *pipp- ‘young bird, nestling’, *kap- ‘hawk, falcon’