frizz

From Middle English frysen, from Old French friser, frizer (“to frizzle, crisp, curl, ruffle, braid, touch lightly, graze, scratch”), of Proto-Germanic origin, perhaps via Old Frankish *fris (“curl”), from Proto-Germanic *frisaz (“frizzy, curly”). Cognate with Old Frisian frisle, frēsle ("the hair of the head, lock of hair, curl, ringlet"; > North Frisian friessle, fressle (“hair, horse's tail”), West Frisian frisseljen (“braid of hair, braid”)), Old English frīs (“crisped, curled”).

From Middle English fryse, from the verb. See above.