Strong's G1845 — ἐξορκιστής (noun)
exorkistes (ex-or-kis-tace') n.
1. one that binds by an oath (or spell)
2. (by implication) an "exorcist" (conjurer)
[from G1844]
KJV: exorcist 
Root(s): G1844 
Hebrew root: ἐξορκίζω
Occurrences: 1