Welsh eirin

← Breton irin (cognate)

← Proto-Celtic *agrinyā (inherited)

← Proto-Celtic *agrinyom (mention)

← Old Church Slavonic агода (cognate)

← Irish airne (cognate)

← Proto-Indo-European *h₂ógeh₂ (inherited)

← Cornish yryn (cognate)

← Tocharian B oko (cognate)

→ English acorn (cognate)

→ Welsh eirinen (affix)

→ Welsh aeron (mention)

→ Welsh eirina (affix)

→ Welsh eirin gwlanog (compound)

→ Welsh eirin ysgaw (compound)

→ Welsh eirin Mair (compound)

→ Basque aran (cognate)

→ Irish airne (cognate)