Where does “sexagénaire” come from?
sexagénaire (French) comes from Latin sexagenarius, from Latin sexāgēnus, from Latin sexāgintā, from Proto-Indo-European sweḱsḱomt, from Proto-Indo-European swéḱs-dḱomt — six-ten.
sexagénaire (French): sexagenarian
Ancestry of “sexagénaire”, step by step
Words derived from “sexagénaire”