frill

Short definition from Wiktionary

Noun

1. 1
   A strip of pleated fabric or paper used as decoration or trim.
2. 2
   A substance or material on the edge of something, resembling such a strip of fabric.
3. 3
   A wrinkled edge to a film.
4. 4
   Something extraneous or not essential; something purely for show or effect; a luxury.
5. 5
   The relatively extensive margin seen on the back of the heads of reptiles, with either a bony support or a cartilaginous one.
6. 6
   Synonym of armilla.

Verb

1. 1
   To make into a frill.
2. 2
   To become wrinkled.
3. 3
   To provide or decorate with a frill or frills; to turn back in crimped plaits.
4. 4
   To shake or shiver as with cold (with reference to a hawk).
5. 5
   To cry (with reference to a bird of prey).