Scottish Gaelic Èirinn

← Proto-Celtic *Φīweryū (derived)

← Welsh Iwerddon (cognate)

← Irish Éire (cognate)

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

← Proto-Indo-European *piHwer- (mention)

← Old Irish Ériu (derived)

→ Scottish Gaelic Èireannach (affix)