What's the difference between knavish and roguish?

Knavish

Definition:

(a.) Like or characteristic of a knave; given to knavery; trickish; fraudulent; dishonest; villainous; as, a knavish fellow, or a knavish trick.
(a.) Mischievous; roguish; waggish.

Example Sentences:

Definition:

Example Sentences:

(1) In a break from filming, Pratt described his character as a "roguish space dude who's socially stunted and essentially still very much a child".
(2) When I was 18, I was held in custody in Panama's airport (because of the Indian passport I then carried) and denied formal entry to the nation, while the roguish English friend from high school with whom I was travelling was free to enter with impunity and savour all the dubious pleasures of the Canal Zone.
(3) So Camilla decided to marry the roguish Andrew while Charles had to make do with Diana.
(4) Miami Vice (2006) Foxx reunited with Mann for a lush big-screen treatment of the 80s TV show about two roguish cops patrolling the art-deco seafront.
(5) A roguish and debonair art dealer, our hero has been described as an amoral Bertie Wooster with psychopathic tendencies.
(6) The novelist Howard Jacobson, who roguishly calls himself "the Jewish Jane Austen", certainly found it a struggle teaching Mansfield Park in 1960s Australia, worrying that decorum was just too hard a sell.
(7) This man-of-the-people routine is probably the aspect of McShane most prized by audiences, and it can't be a coincidence that his two signature roles have been flipsides of the same roguish persona, one charming ( Lovejoy ), the other infinitely scuzzy (Al in Deadwood).