(tr) to expel or attempt to expel (one or more evil spirits) from (a person or place believed to be possessed or haunted), by prayers, adjurations, and religious rites
[C15: from Late Latin exorcizāre, from Greek exorkizein, from ex-1 + horkizein to adjure]
exorciseorexorcise
—vb
[C15: from Late Latin exorcizāre, from Greek exorkizein, from ex-1 + horkizein to adjure]
14c., "a calling up or driving out of evil spirits," from L.L. exorcismus, from Gk. exorkizein "exorcize, bind by oath," from ex- "out of" + horkizein "cause to swear," from horkos "oath."