cooperative (adj.)youdaoicibaDictYouDict[cooperative 词源字典]
also co-operative, c. 1600, from Late Latin cooperat-, past participle stem of cooperari (see cooperation) + -ive. Political economy sense is from 1808, from the pre-Marx communist movement. The noun meaning "a cooperative store" is from 1883; meaning "a cooperative society" is from 1921.[cooperative etymology, cooperative origin, 英语词源]