quirks is a form of:

Quirk



noun
1.
(a peculiarity of a preserves behave, a trick of fate; a flourish in writing) a quirk of his personality លក្ខណៈចម្លែក, a quirk of nature អនិយភាព
Example: He had a strange quirk of addressing his wits as Mrs Smith.
ENGLISH MEANING
noun
1.
A sudden turn; a starting from the point or line; hence, an artful evasion or subterfuge; a shift; a quibble; as, the quirks of a pettifogger.
2.
A fit or turn; a short paroxysm; a caprice.
3.
A smart retort; a quibble; a shallow conceit.
4.
An irregular air; as, light quirks of music.
5.
A piece of ground taken out of any regular ground plot or floor, so as to make a court, yard, etc.; -- sometimes written quink.
6.
A small channel, deeply recessed in proportion to its width, used to insulate and give relief to a convex rounded molding.
1.
caprice, characteristic, idiosyncrasy, irregularity, oddity, peculiarity, style, temperament, whim