collude
v.
1520s, from Latin colludere "act collusively," literally "to play with" (see collusion). Related: Colluded; colluding.
〔李〕[col-(com-)=together共；lud=to play耍弄；-e→“to play together共同玩弄”→] v. work together secretly for fraud or illegal act共谋，勾结