Greek word
exorkistḗs
ἐξορκιστής
What it means
one that binds by an oath, i.e. an exorcist
one that binds by an oath (or spell), i.e. (by implication) an "exorcist" (conjurer)
Where it comes from
from exorkízō (ἐξορκίζω)
How the King James translates it
Every place it appears 1
Acts19:13