Where does “septantième” come from?
septantième (French) comes from French septante, from Old French setante, from Latin septuāgintā, from Latin septmāginta, from Proto-Indo-European septm̥̄ḱomt, from Proto-Indo-European septḿ̥-dḱomt — seven-ten.
septantième (French): seventieth
Ancestry of “septantième”, step by step