roundup (n.)youdaoicibaDictYouDict[roundup 词源字典]
also round-up, by 1869 in the cattle drive sense; from verbal phrase round up "to collect in a mass" (1610s; specifically of livestock from 1847); see round (v.) + up (adv.). Meaning "summary of news items" is recorded from 1886.[roundup etymology, roundup origin, 英语词源]