
1) Bad man 2) Barrater 3) Barrator 4) Base character 5) Blackguard 6) Dastardly one 7) Deceitful sort 8) Exclusively Saxon word 9) Exclusively Anglo word 10) Jack 11) Jack in a deck 12) Jack in a deck of cards 13) Jack in a suit 14) Jack in the deck 15) Lazarillo de tormes 16) Liar of paradoxes 17) Medieval servant 
Found on 
https://www.crosswordclues.com/clue/knave

1) Cad 2) Coistrel 3) Cur 4) Rapscallion 5) Rascal 6) Rogue 7) Scalawag 8) Scoundrel 9) Varlet 
Found on 
https://www.crosswordclues.com/clue/knave

- a deceitful and unreliable scoundrel
 - one of four face cards in a deck bearing a picture of a young prince
 
Found on 
[magazine]  Knave magazine is a long-established British pornographic magazine, published by Galaxy Publications. It is the upmarket sister publication of Fiesta magazine. Along with many other adult magazines, Knave has published the works of popular authors, including Harlan Ellison. Ellison`s short story `The Pied Piper of Sex` was first ...
Found on 
http://en.wikipedia.org/wiki/Knave_(magazine)

• (n.) A tricky, deceitful fellow; a dishonest person; a rogue; a villain. • (n.) A playing card marked with the figure of a servant or soldier; a jack. • (n.) A boy; especially, a boy servant. • (n.) Any male servant; a menial.
Found on 
http://thinkexist.com/dictionary/meaning/knave/

1. A boy; especially, a boy servant. 'O murderous slumber, Lay'st thou thy leaden mace upon my boy That plays thee music ? Gentle knave, good night.' (Shak) ... 2. Any male servant; a menial. 'He's but Fortune's knave, A minister of her will.' (Shak) ... 3. A tricky, deceitful fellow; a dishonest person; a rogue; a villain. 'A pair of crafty knaves...
Found on 
http://www.encyclo.co.uk/local/20973

Knave (nāv)  noun [ Middle English , boy, servant, knave, Anglo-Saxon  cnafa boy, youth; confer Anglo-Saxon  cnapa boy, youth, Dutch  knaap , German  knabe boy,  knappe esquire, Icelandic  knapi , Swedish  knape esquire,  knäfvel knave.]  1.
Found on 
http://www.encyclo.co.uk/webster/K/13

A false, dishonest, or deceitful person. This signification of the word has arisen by a long perversion of its original meaning. To call a man a knave has been held to be actionable, at least in past times since it is a word seldom used today.
Found on 
http://www.lectlaw.com/def/j067.htm

The USS Knave was an American Admirable Class minesweeper of 625 tons displacement launched in 1943. The USS Knave was powered by diesel engines providing a top speed of 14.5 knots and carried a complement of 104. She was armed with one 3 inch dual-purpose gun and four 40 mm anti-aircraft guns.
Found on 
http://www.probertencyclopaedia.com/browse/RK.HTM

Knave is British slang for an unwitting courier of explosives, a sacrificial bomb-carrier.
Found on 
http://www.probertencyclopaedia.com/browse/ZK.HTM

a miller?s boy.
Found on 
http://www.telelib.com/authors/S/ScottWalter/prose/pirate/glossary.html

British slang for an unwitting courier of explosives, a sacrificial bomb-carrier.
Found on 
https://www.easypacelearning.com/english-books/slang-words-a-to-z/375-slang
 noun one of four face cards in a deck bearing a picture of a young prince
Found on 
https://www.encyclo.co.uk/local/20974

an unprincipled, untrustworthy, or dishonest person. · jack (def. 2). · · a male servant. · a man of humble position.
Found on 
https://www.infoplease.com/dictionary/knave
[SAT terms] a deceitful and unreliable scoundrel
Found on 
https://www.vocabulary.com/lists/151274
  No exact match found.