ἀργυραμοιβός
From LSJ
Ῥῦσέ με δεινῶν νοσημάτων, ἱερώτατε, ἱερωσύνην συναρμόσας ἐν χαρᾷ και ἐπιστήμης τὸ πολύτιμον κεφάλαιον → Deliver me from grievous afflictions, most holy one, joining sanctity together in joy with the precious fountainhead of knowledge
English (LSJ)
ὁ,
A money-changer, banker, Pl.Plt. 289e, Theoc.12.37, etc.: as Adj., ἀ. τιμή Maiist.32.