out-ˈknave,v.rare. [out- 22.] trans. To outdo in knavery; to get the better of by knavery. 1660C. Bonde Scut. Reg. 286 It grieved them to see the Independents..out-knave them.a1704R. L'Estrange (J.), The world calls it outwitting a man, when he's only out-knaved.