knave

What does "knave" mean?
A knave is a dishonest or unscrupulous man. Historically, the term referred to a servant or a boy, but it evolved to describe someone of low social status who lacks moral integrity, often implying a degree of cunning or roguish behavior. Think of a character in a period drama who is constantly scheming behind the scenes to cheat others. Today, the word is almost exclusively used in literary contexts or as a playful, old-fashioned insult. It carries a sense of "villainy" that feels theatrical rather than truly menacing. You will frequently see it paired with adjectives like "base" or "sorry" to emphasize the person's lack of character.
"knave" in conversation
Playing cards
I can't believe you drew the knave of hearts!
I can't believe you drew the knave of hearts!
That card has always been my lucky charm.
That card has always been my lucky charm.
In modern English, 'knave' is most commonly encountered in the context of playing cards, where it is another name for the Jack.
Historical roleplay
Begone, you base knave! You have no honor!
Begone, you base knave! You have no honor!
Honor doesn't fill my belly, sir.
Honor doesn't fill my belly, sir.
This demonstrates the classic, dramatic usage of the word as an insult.
"knave" in a sentence
He is a sorry knave who would betray his own brother for a few coins.
He is a sorry knave who would betray his own brother for a few coins.
The king’s guards seized the knave before he could escape the castle walls.
The king’s guards seized the knave before he could escape the castle walls.
Despite his outward charm, the knave harbored deep-seated malice toward the nobility.
Despite his outward charm, the knave harbored deep-seated malice toward the nobility.