Meaning

noun the act of giving something up

noun withdrawing support or help despite allegiance or responsibility

noun the voluntary surrender of property (or a right to property) without attempting to reclaim it or give it away

originBorrowed from French abandonnement, from abandonner (“to abandon, relinquish”). abandonner was originally equivalent to mettre à bandon (“to leave to the jurisdiction, i.e. of another”), bandon being from Medieval Latin bandum, bannum (“order, decree, ban”). Equivalent to abandon + -ment. (See also English banns.)

Etymology from Wiktionary, CC BY-SA 3.0