The Collaborative International Dictionary of English v.0.48:

Calamistrate \Cal`a*mis"trate\ (-m[i^]s"tr[=a]t), v. i. [L.
   calamistratus, curled with the curling iron, fr. calamistrum
   curling iron, fr. calamus a reed.]
   To curl or friz, as the hair. [Obs.] --Cotgrave.