Talisman
mid 17th century: based on Arabic ṭilsam, apparently from an alteration of late Greek telesma ‘completion, religious rite’, from telein ‘complete, perform a rite’, from telos ‘result, end’.
wiktionary
From French talisman, partly from Arabic طِلَّسْم (ṭillasm), from Ancient Greek τέλεσμα(télesma, “payment”); and partly directly from Byzantine Greek τέλεσμα(télesma, “talisman, religious rite, completion”), from τελέω(teléō, “to perform religious rites, to complete”), from τέλος(télos, “end, fulfillment, accomplishment, consummation, completion”). Doublet of telesm.
etymonline
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.