cooperate
v.
also co-operate, c.1600, from Late Latin cooperatus, past participle of cooperari "to work together with" (see cooperation). Related: Cooperated; cooperating.
〔李〕[co-（com-）=together 共同；oper=to work 工作；-ate v.⇒“to work together 共同工作” →] vi. “work togethert；unite in producing a result 合作；协作
〔李〕[co-;oper;-atev.] v.合作，协作； 配合 ←oper (L opera)=work, effort 劳动，出力
〔蒋〕[co-共同，oper工作，-ate动词后缀，做…] 合作，协作