Ancient Greek ἐνενήκοντα

← Ancient Greek ἐννέα (mention)

← Ancient Greek δέκα (mention)

← Proto-Indo-European *h₁néwn̥(d)ḱomt (inherited)

← Proto-Indo-European *h₁néwn̥ (mention)

← Proto-Indo-European *déḱm̥t (mention)

← Latin nōnāgintā (cognate)

← Old Armenian իննսուն (cognate)

→ Greek ενενήντα (inherited)

→ Latin nonaginta (cognate)

→ Russian девяносто (cognate)

→ Sanskrit नवति (cognate)