Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

941. Knave — N. knave, rogue; Scapin†, rascal; Lazarillo de Tormes; bad

man &c 949; blackguard &c 949; barrater†, barrator†; shyster [U.S.]. traitor, betrayer, archtraitor†, conspirator, Judas, Catiline; reptile, serpent, snake in the grass, wolf in sheep's clothing, sneak, Jerry Sneak, squealer [Slang], tell-tale, mischief-maker; trimmer, fence-sitter, renegade &c (tergiversation) 607; truant, recreant; sycophant &c (servility) 886.