confrere (n.)youdaoicibaDictYouDict[confrere 词源字典]
early 15c., from Old French confrere "brother, companion" (13c.), from Medieval Latin confrater, from com- "together, with" (see com-) + frater "brother" (see brother). Probably lost in later 17c. and reborrowed 19c. from Modern French confrère.[confrere etymology, confrere origin, 英语词源]