(1):

(v. t.) To prepare by boiling; to digest in hot or boiling water; to extract the strength or flavor of by boiling; to make an infusion of.

(2):

(v. t.) To prepare by the heat of the stomach for assimilation; to digest; to concoct.

(3):

(v. t.) To warm, strengthen, or invigorate, as if by boiling.