(1):
(v. t.) To relieve, in a moral sense, as of a charge, obligation, or load of blame resting on one; to clear of something that lies upon oppresses one, as an accusation or imputation; as, to exonerate one's self from blame, or from the charge of avarice.
(2):
(v. t.) To unload; to disburden; to discharge.
(3):
(v. t.) To discharge from duty or obligation, as a ball.