Proto-Indo-European *kʷetwr̥(d)ḱomt

→ Catalan quaranta (inherited)

→ Greek σαράντα (mention)

→ Spanish cuarenta (inherited)

→ French quarante (inherited)

→ Ancient Greek τεσσαράκοντα (mention)

→ Italian quaranta (inherited)

→ Latin quadraginta (inherited)

→ Portuguese quarenta (inherited)

→ Sardinian baranta (inherited)