Old Irish úan

← Proto-Celtic *owignos (inherited)

← Welsh oen (cognate)

← Proto-Indo-European *h₂egʷnós (inherited)

← Proto-Indo-European *pow-ino- (inherited)

← Proto-Indo-European *pu- (mention)

← Old Irish ón (link)

→ English yean (cognate)

→ Breton oan (cognate)

→ Welsh oen (cognate)

→ Middle English hone (cognate)

→ Irish uan (inherited)

→ Irish uain (inherited)

→ Scottish Gaelic uan (inherited)

→ Manx eayn (inherited)