Old Irish nert

← Proto-Celtic *nertom (inherited)

← Proto-Indo-European *h₂ner-to- (inherited)

← Proto-Indo-European *h₂nḗr (mention)

→ Irish neart (inherited)

→ Irish ainneart (mention)

→ Scottish Gaelic neart (inherited)

→ Scottish Gaelic ainneart (mention)

→ Ancient Greek ἀνήρ (cognate)

→ Manx niart (inherited)

→ Latin neriosus (cognate)

→ Old Irish nertaid (affix)