noun
exorcist
EK-sor-sist/ˈeksɔːrsɪst/
A person who expels supposed evil spirits through ritual or prayer.
The exorcist recites prayers to drive away supposed evil spirits.

Etymology
The oath root connects this person with solemn invocation rather than physical force. The underlying verb meant “bind by oath” and came to mean driving out an evil spirit—the action an exorcist performs.
In context
Dark Arts specialist Ian Lawman is an ordained exorcist and medium.
More examples
- The family calls an exorcist because they believe the house is haunted.
- In the novel, an exorcist performs a ritual over the possessed child.
- The documentary explores the prayers and rituals used by exorcists.