The story
- Latin · derived fromconcubīna
- Anglo-Norman · derived fromconcubine
- Middle English · inherited fromconcubine
- English todayconcubine
From Middle English concubine (first attested 1250–1300), from Anglo-Norman concubine, from Latin concubīna, equivalent to concub- (variant stem of concumbō (“to lie together”)) + feminine suffix -īna.
Etymology from Wiktionary, CC BY-SA 4.0.