frill /(frĭl)/

imp. & p. p. frilled; p. pr. & vb. n. frilling

1. To shake or shiver as with cold; as, the hawk frills.
2. To wrinkle; -- said of the gelatin film. (Photog.)

1. To provide or decorate with a frill or frills; to turn back. in crimped plaits; as, to frill a cap.

1. A ruffing of a bird's feathers from cold. (Zool.)
2. A border or edging secured at one edge and left free at the other, usually fluted or crimped like a very narrow flounce.
3. Something superfluous, such as an ornament, or an additional function on a device or in a system not essential to the basic operation. -- Commonly used in the phrase no frills, used adjectively to indicate a fully functional but economical device or service; as, an economical no-frills airline.