outstanding (adj.)youdaoicibaDictYouDict[outstanding 词源字典]
1610s, "projecting, prominent, detached," present participle adjective from outstand (v.) "endure successfully, hold out against," from out (adv.) + stand (v.). Figurative sense of "conspicuous, striking" is first recorded 1830. Meaning "unpaid, unsettled" is from 1797. Related: Outstandingly.[outstanding etymology, outstanding origin, 英语词源]