telesm
A magical talisman, amulet or charm.
archaic
“In all these cases they had held that environment could be modified at will by telesmata or sympathetic figures.”
Where it comes from
From New Latin telesma, and its source, Byzantine Greek τέλεσμα (télesma), from Ancient Greek τελεῖν (teleîn, “to perform (rites), to initiate (in the mysteries”). Doublet of talisman.
Adapted from the Wiktionary entry telesm (CC BY-SA 4.0).