late 14c., "to subjugate, subdue," from O.Fr. abandoner "surrender," from à "at, to" + bandon "power, jurisdiction," in phrase mettre à bandon "to give up to a public ban," from L. bannum, "proclamation," from a Frankish word related to ban (v.). Etymologically, the word carries a sense of "put someone under someone else's control." Meaning "to give up absolutely" is from late 14c. The noun sense of "letting loose, surrender to natural impulses" (1822) is from Fr. abandon.