talisman (n.)

1630s, "magical figure cut or engraved under certain observances," from French talisman, in part via Arabic tilsam (plural tilsaman), from Byzantine Greek telesma "talisman, religious rite, payment," earlier "consecration, ceremony," originally in ancient Greek "completion," from telein "perform (religious rites), pay (tax), fulfill," from telos "end, fulfillment, completion" (see telos). The Arabic word also was borrowed into Turkish, Persian, Hindi. Related: Talismanic; talismanical.