Welsh ewythr

← Breton eontr (cognate)

← Proto-Celtic *awontīr (inherited)

← German Awwe (cognate)

← German Ohm (mention)

← Proto-Indo-European *h₂euh₂-n-tlo (mention)

← Proto-Indo-European *h₂éwh₂os (inherited)

← Cornish ewnter (cognate)

← Latin avunculus (cognate)

← Latin avus (cognate)

← Middle Irish ó (cognate)

← Old Irish amnair (cognate)

← Middle Welsh ewythyr (inherited)

→ Breton eontr (cognate)

→ Lithuanian avynas (cognate)

→ Old Irish amnair (cognate)