According to some, *wiHrós is derived from the verb *weyh₁- (“to hunt”) (cf. Sanskrit वेति (véti), Lithuanian výti etc.), which would render the reconstruction as *wih₁rós, with *h₁ at the place of otherwise unreconstructable laryngeal *H, and the original meaning of "hunter".
*wiHrós m (non-ablauting)
Germanic, Celtic, and Italic forms point to a short *i, with loss of the root laryngeal, which is reconstructed on the basis of Sanskrit and Lithuanian (Balto-Slavic acute, retracted to the root vowel by Hirt's law) forms.
- (possibly) Old Armenian: ամուրի (amuri, “husbandless”)
- Balto-Slavic: *wī́ˀras (“husband, man”)
- Celtic: *wiros (see there for further descendants)
- Germanic: *weraz (see there for further descendants)
- Hellenic: [Term?]
- Indo-Iranian: *wiHrás (see there for further descendants)
- Italic: *wiros (see there for further descendants)
- Tocharian: [Term?]
- Tocharian A: wir (“youthful, young, fresh”)
- Beekes, Robert S. P. (2010), “ἱέραξ”, in Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill, pages 579-580