The story
- Latin · derived fromprimas
- Medieval Latin · derived fromprimatia“office of a church primate”
- Old French · derived fromprimacie
- English todayprimacy
From Old French primacie, from Medieval Latin primatia (“office of a church primate”), from Latin primas plus a suffix corresponding to -acy. By surface analysis, prime + -acy.
Etymology from Wiktionary, CC BY-SA 4.0.