Old Irish mí

← Proto-Celtic *mīns (inherited)

← Proto-Indo-European *mḗh₁n̥s (inherited)

→ English month (cognate)

→ Irish mí (inherited)

→ Irish tréimhse (mention)

→ Scottish Gaelic mìos (derived)

→ Ancient Greek μείς (cognate)

→ Manx mee (inherited)

→ Latin mensis (cognate)