STEP Greek Lexicon: πράκτωρ

πράκτωρ, -ορος, ὁ

(πράσσω), [in LXX: Isa.3:12 (נָגַשׁ) * ;]

__1. (poët.) one who does or accomplishes.

__2. In Athens, one who exacts payment, a collector; hence, generally (frequently in π., see Deiss., BS, 154), a court officer: Luk.12:58.†

(AS)