The word is also used adjectively for "knavish tricks," "rogueries."
But they must have forgotten all about Mr. Crow's knavish cousin, Jasper Jay.
I was describing to F—— some knavish tricks of a mutual friend of ours.
They were like monkeys for their knavish and thievish tricks.
How could I foresee I should have to deal with a knavish sort of a nameless something?