OriginBorrowed from some variety of Insular Celtic; compare Proto-Brythonic *aβon, Proto-Celtic *abū, ultimately from Proto-Indo-European *h₂ep- (“water”).
- declension-1, masculine, singularThe river Avon
FormsAvonae(genitive) · Avona(nominative, singular) · Avonae(genitive, singular) · Avonae(dative, singular) · Avonam(accusative, singular) · Avonā(ablative, singular) · Avona(singular, vocative)
Source: Wiktionary