Irish aiteann

← Proto-Celtic *axtīnos (inherited)

← Welsh eithin (cognate)

← Proto-Indo-European *h₂eḱ- (root)

← Proto-Indo-European *h₂eḱstis (inherited)

← Proto-Indo-European *h₂eḱ- (inherited)

← Lithuanian akstìs (cognate)

← Russian ость (cognate)

← Old Irish aiten (inherited)

→ Irish áthas (mention)

→ Irish aiteannach (affix)