Quirk (kwẽrk), n. [Written also querk.] [Cf. W. chwiori to turn briskly, or E. queer.] 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.” Spenser.
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.” Shak.
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. Pope.
5. (Building) A piece of ground taken out of any regular ground plot or floor, so as to make a court, yard, etc.; — sometimes written quink. Gwilt.
6. (Arch.) 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.