assortment (n.)youdaoicibaDictYouDict[assortment 词源字典]
1610s, "action of assorting," from assort + -ment. Sense of "group of things of the same sort" is attested from 1759; that of "group of things whether the same sort or not" from 1791.[assortment etymology, assortment origin, 英语词源]