Crispation

Cris*pa"tion (kr?s-p?"sh?n), n. [CF. F. crispation.] 1. The act or process of curling, or the state of being curled. Bacon.

2. A very slight convulsive or spasmodic contraction of certain muscles, external or internal.

Few men can look down from a great height without creepings and crispations.
O. W. Holmes.