(1):
(n.) An unreasonable notion; a crotchet; a whim; a caprice.
(2):
(n.) A twist or loop in a rope or thread, caused by a spontaneous doubling or winding upon itself; a close loop or curl; a doubling in a cord.
(3):
(n.) A fit of coughing; also, a convulsive fit of laughter.
(4):
(v. i.) To wind into a kink; to knot or twist spontaneously upon itself, as a rope or thread.