Old Irish Oíngus

← Proto-Celtic *oinos (derived)

← Proto-Celtic *gustus (derived)

← Proto-Celtic *gus- (derived)

← Proto-Indo-European *ǵews- (root)

← Proto-Indo-European *óynos (derived)

← Proto-Indo-European *ǵews- (derived)

← Old Irish oín (mention)

← Old Irish gus (mention)

→ Irish Aonghas (inherited)

→ Scottish Gaelic Aonghas (inherited)

→ Manx Anghus (inherited)

→ Icelandic Dufgus (link)

→ Middle Irish Aengus (inherited)

→ Norwegian Bokmål aberdeen angus (derived)

→ Old Norse Dufgus (link)