(1):

(v. i.) To become scorched or superficially burnt; to be very dry.

(2):

(v. t.) To burn the surface of; to scorch; to roast over the fire, as dry grain; as, to parch the skin; to parch corn.

(3):

(v. t.) To dry to extremity; to shrivel with heat; as, the mouth is parched from fever.