The Collaborative International Dictionary of English v.0.48:
Crisp \Crisp\, v. t. [imp. & p. p. Crisped (kr?spt); p. pr. &
vb. n. Crisping.] [L. crispare, fr. crispus. See Crisp.
1. To curl; to form into ringlets, as hair, or the nap of
cloth; to interweave, as the branches of trees.
2. To cause to undulate irregularly, as crape or water; to
wrinkle; to cause to ripple. Cf. Crimp.
The lover with the myrtle sprays
Adorns his crisped tresses. --Drayton.
Along the crisped shades and bowers. --Milton.
The crisped brooks,
Rolling on orient pearl and sands of gold. --Milton.
3. To make crisp or brittle, as in cooking.
Crisping iron, an instrument by which hair or any textile
fabric is crisped.
Crisping pin, the simplest form of crisping iron. --Is.