(ש"ע) נסיך (בקלפים); נוכל, רמאי, נבל

n. jack, playing card with the figure of a knave; rogue, cheater, crook, scoundrel, villain

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Noun
1. a deceitful and unreliable scoundrel
(synonym) rogue, rascal, rapscallion, scalawag, scallywag, varlet
(hypernym) villain, scoundrel
2. one of four face cards in a deck bearing a picture of a young prince
(synonym) jack
(hypernym) face card, picture card, court card

(n.)
Any male servant; a menial.
  

(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.
  

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.
   

This entry contains material from Bouvier's Legal Dictionary, a work published in the 1850's.