[ἐξορκιστής] from G1844; one that binds by an oath (or spell), i.e. (by implication) an "exorcist" (conjurer)
Usages throughout the bible
Acts 19:13
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Then certain of the vagabond Jews, exorcists, G1845 took upon them to call over them which had evil spirits the name of the Lord Jesus, saying, We adjure you by Jesus whom Paul preacheth.