good will (n.)youdaoicibaDictYouDict[good will 词源字典]
Old English godes willan "state of wishing well to another;" see good (adj.) + will (n.). Meaning "cheerful acquiescence" is from c. 1300. In the commercial sense "degree of favor enjoyed through patronage of customers" from 1570s.[good will etymology, good will origin, 英语词源]