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. Some quirk or . . . Evasion. We ground the justification of our nonconformity on dark subtilties and intricate quirks. (barrow)
2. A fit or turn; a short paroxysm; a caprice. Quirks of joy and grief.
3. A smart retort; a quibble; a shallow conceit. Some odd quirks and remnants of wit. (Shak)
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. Quirk molding, a bead between two quirks.
Origin: Cf W. Chwiori to turn briskly, or E. Queer.