collection (n.)youdaoicibaDictYouDict[collection 词源字典]
late 14c., "action of collecting," from Old French collection (14c.), from Latin collectionem (nominative collectio) "a gathering together," noun of action from colligere (see collect). Especially of money gathered for religious or charitable purposes from 1530s. Meaning "a group of objects viewed as a whole" is from c. 1400.[collection etymology, collection origin, 英语词源]