Webster's Revised Unabridged Dictionary · 1913

Exorcise

Exorcise (eks"or*sīz) , transitive verb

[Latin exorcizare, Greek 'exorki`zein; 'ex out + "orki`zein to make one swear, bind by an oath, from "o`rkos oath: compare French exorciser.]

1.
To cast out, as a devil, evil spirits, etc., by conjuration or summoning by a holy name, or by certain ceremonies; to expel (a demon) or to conjure (a demon) to depart out of a person possessed by one.
He impudently excorciseth devils in the church. — Prynne
2.
To deliver or purify from the influence of an evil spirit or demon.
Exorcise the beds and cross the walls. — Dryden
Mr. Spectator... do all you can to exorcise crowds who are... processed as I am. — Spectator