(1):
(v. t.) To relinquish; to abandon.
(2):
(v. t.) To commit to the care of; to consign.
(3):
(v. t.) To sign back; to return by a formal act; to yield to another; to surrender; - said especially of office or emolument. Hence, to give up; to yield; to submit; - said of the wishes or will, or of something valued; - also often used reflexively.