Collude \Col*lude"\, v. i. [imp. & p. p. {Colluded}; p. pr. &
vb. n. {Colluding}.] [L. colludere, -lusum; col- + ludere to
play. See {Ludicrous}.]
To have secretly a joint part or share in an action; to play
into each other's hands; to conspire; to act in concert.
[1913 Webster]
If they let things take their course, they will be
represented as colluding with sedition. --Burke.
[1913 Webster]