- bedfellow (n.)
[bedfellow 词源字典]
- "close friend, roommate," mid-15c., from bed (n.) + fellow (n.). Also (late 15c) "concubine." Earlier in the "close companion" sense was bed-fere (early 14c.). Bedsister "husband's concubine" is recorded in Middle English (c. 1300).[bedfellow etymology, bedfellow origin, 英语词源]