get-together (n.)youdaoicibaDictYouDict[get-together 词源字典]
1911, from get (v.) + together (adv.). The verbal phrase is attested by c. 1400 as "collect, gather;" meaning "to meet, to assemble" is from 1690s. As "to organize" (oneself), by 1962.[get-together etymology, get-together origin, 英语词源]