Where does “onzième” come from?

onzième (French) comes from French onze, from Middle French unze, from Old French onze, from Latin undecim, from Latin oinodecem, from Proto-Indo-European óynom déḱm̥t.

onzième (French): eleventh

Definitions

eleventh

Ancestry of “onzième”, step by step

Step	Language	Word	Meaning
1	French	onze	eleven
2	Middle French	unze	eleven
3	Old French	onze	eleven
4	Latin	undecim	eleven; 11
5	Latin	oinodecem	—
6	Proto-Indo-European	óynom déḱm̥t	—

Words derived from “onzième”

11e
onzièmement

Every word from Proto-Indo-European óynom déḱm̥t →Every word from Latin oinodecem →Every word from Latin undecim →