frill

A strip of pleated fabric or paper used as decoration or trim.

A substance or material on the edge of something, resembling such a strip of fabric.

A wrinkled edge to a film.

Something extraneous or not essential; something purely for show or effect; a luxury.

The relatively extensive margin seen on the back of the heads of reptiles, with either a bony support or a cartilaginous one.

To make into a frill.

To become wrinkled.

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

To shake or shiver as with cold (with reference to a hawk).

To cry (with reference to a bird of prey).