earnings (n.)youdaoicibaDictYouDict[earnings 词源字典]
amount of money one makes (from labor or investment), 1732, from plural of verbal noun earning, from earn (v.). Old English had earnung in sense "fact of deserving; what one deserves; merit, reward, consideration, pay," but the modern word seems to be a new formation.[earnings etymology, earnings origin, 英语词源]