Reject a pact with the devil, out of a body. It is a religious rite, practiced especially by Catholic Christians, so the origin of the word is found in the medieval latin exorcizare (swear) that takes him from the Greek 949; 958; 959; 961; 954; 8055; 950; 949; 953; 957; (exorkizein sworn obligation); There is an etymology which gives another credible twist, is coming from ex-Orco, Horkos was the Greek God of oaths, who ended up in the underworld and latinos called it Orcus by associating it with hell and its inhabitants; by what exorcism could be understood as the demonic out.
