←
Proto-Indo-European *mḗh₁n̥s (inherited)←
Proto-Indo-European *-ih₃no- (cognate)←
Old Armenian ամ (mention)←
Old Armenian ամսեան (mention)→
Ancient Greek Μήνη (cognate)→
Ancient Greek μείς (cognate)→
Armenian ամիս (mention)→
Old Armenian -եան (mention)