Where does “ancienneté” come from?

ancienneté (Middle French) comes from Old French ancienete, from Old French ancien, from Vulgar Latin anteanus, from Latin ante, from Ancient Greek κλίσις, from Ancient Greek -σῐς, from Ancient Greek -τις, from Proto-Indo-European -tis — Derives abstract/action nouns from verb roots.

Ancestry of “ancienneté”, step by step

StepLanguageWordMeaning
1Old Frenchancienete
2Old Frenchancienold; ancient
3Vulgar Latinanteanusold, ancient
4Latinantebefore, in front, forwards; before; before,...
5Ancient Greekκλίσιςbending, inclination; a lying down; a place for...
6Ancient Greek-σῐς"suffix forming nouns"
7Ancient Greek-τιςretained after dentals
8Proto-Indo-European-tisDerives abstract/action nouns from verb roots

Words derived from “ancienneté

Every word from Proto-Indo-European -tisEvery word from Ancient Greek -σῐςEvery word from Ancient Greek κλίσις