chamberlain (n.)youdaoicibaDictYouDict[chamberlain 词源字典]
early 13c., from Old French chamberlenc "chamberlain, steward, treasurer" (Modern French chambellan), from a Germanic source (perhaps Frankish *kamerling; compare Old High German chamarling, German Kämmerling), from Latin camera "chamber, room" (see camera) + Germanic diminutive suffix -ling.[chamberlain etymology, chamberlain origin, 英语词源]