knave

1. (archaic) A boy; especially, a boy servant.archaic

2. (archaic) Any male servant; a menial.Examples: "Many a duteous and knee-crooking knave that, doting on his own obsequious bondage, wears out his time, much like his master's ass, For naught but provender, and when he's old – cashier'd! Whip me such honest knaves."archaic

3. (dated) A tricky, deceitful fellow; a dishonest person.Examples: "I could plainly diſcover from whence one Family derives a long Chin; why a ſecond hath abounded with Knaves for two Generations, and Fools for two more; why a third happened to be crack-brained, and a fourth to be Sharpers."; "He was a man whom scarcely any amount of fortune could have benefited permanently, and who was made to be ruined, to cheat small tradesmen, to be the victim of astuter sharpers: to be niggardly and reckless, and as destitute of honesty as the people who cheated him, and a dupe, chiefly because he was too mean to be a successful knave."; "I had never defrauded a man of a farthing, nor called him knave behind his back. But now the last rag that covered my nakedness had been torn from me. I was branded a blackleg, card-sharper, and murderer."Synonyms: rogue, villain, antimodel, bad guy, baddie, bastard, blackguard, bounderdated

4. (card games) A playing card marked with the figure of a servant or a soldier.Synonyms: jack, ;, mul:J