transitive. To impart a sensation of coolness to; esp. to refresh or ease by allaying excessive or painful heat. Also reflexive.

transitive. To air, to refresh with cool air, esp. by opening the front of the helmet so as to admit it; hence, to open (the helmet) for this purpose.

transitive. To refresh (a sense or sensory organ) by means of an agreeable object or impression. Obsolete.

transitive (reflexive). To invigorate oneself by exposure to cold air. Cf. frostbiting, n. 2, frosting, n. 2a. Obsolete. rare.

transitive. To animate to excess; to impart too much information or meaning to. Later also: to provide with too much information.