v.tr. (also -ise) 1 expel (a supposed evil spirit) by invocation or by use of a holy name. 2 (often foll. by of) free (a person or place) of a supposed evil spirit. exorcism n. exorcist n. exorcization n.
[ F exorciser or eccl.L exorcizare f. Gk exorkizo (as EX-(2), horkos oath) ]