incorruptible (adj.)youdaoicibaDictYouDict[incorruptible 词源字典]
mid-14c., in a physical sense, from Middle French incorruptible (14c.), or directly from Late Latin incorruptibilis, from in- “not” (see in- (1)) + corruptibilis (see corruptible). From 1660s in a moral sense. Related: Incorruptibly.[incorruptible etymology, incorruptible origin, 英语词源]