(1):

(v. i.) To pun; to practice punning.

(2):

(v. i.) To evade the point in question by artifice, play upon words, caviling, or by raising any insignificant or impertinent question or point; to trifle in argument or discourse; to equivocate.

(3):

(n.) A pun; a low conceit.

(4):

(n.) A shift or turn from the point in question; a trifling or evasive distinction; an evasion; a cavil.