(1):
(n.) The act of deserting or forsaking; abandonment of a service, a cause, a party, a friend, or any post of duty; the quitting of one's duties willfully and without right; esp., an absconding from military or naval service.
(2):
(n.) Abandonment by God; spiritual despondency.
(3):
(n.) The state of being forsaken; desolation; as, the king in his desertion.