knavery (plural knaveries)
- The (mis)behaviour of a knave, boyish mischief.
- Deceit, an unprincipled action.
- Cassio's a proper man: let me see now:
- To get his place and to plume up my will
- In double knavery-How, how? Let's see: — Shakespeare, Othello, Act 1, Scene 3.