Proto-Indo-European *h₁néwn̥(d)ḱomt

→ Catalan noranta (inherited)

→ Greek ενενήντα (inherited)

→ Spanish noventa (inherited)

→ French nonante (inherited)

→ Ancient Greek ἐνενήκοντα (inherited)

→ Italian novanta (inherited)

→ Latin nonaginta (inherited)

→ Portuguese noventa (inherited)