Apotropaic magic
（重定向自Apotropaism）
Apotropaic magic (from Greek apotrepein "to ward off" from apo- "away" and trepein "to turn") is a type of magic intended to turn away harm or evil influences, as in deflecting misfortune or averting the evil eye. Apotropaic observances may also be practiced out of vague superstition or out of tradition, as in good luck charm (perhaps some token on a charm bracelet), amulets, or gestures such as crossed fingers or knocking on wood. The Greeks made offerings to the averting gods (Ἀποτρόπαιοι θεοί: Apotropaioi Theoi), chthonic deities and heroes who grant safety and deflect evil.