IPA: /ˈɛksɔrˌsaɪzər/
KK: /ˈɛksɔrˌsaɪzər/
A person who drives out evil spirits from a person or place.
The exorciser was called to help the family with their haunted house.
Exorciser → It is formed from "exorcizare" (meaning to drive out) and "-er" (meaning a person who). An exorciser is a person who drives out evil spirits or demons.
Think of someone who 'drives out' ('exorcizare') spirits — that's why an exorciser is a person who does just that.