μεταλλάρχης
From LSJ
θοῦ, Κύριε, φυλακὴν τῷ στόµατί µου καὶ θύραν περιοχῆς περὶ τὰ χείλη µου → set a guard over my mouth, Lord; keep watch over the door of my lips | set a guard, O Lord, over my mouth; keep watch over the door of my lips (Psalm 140:3, Septuagint version)
English (LSJ)
ου, ὁ,
A overseer of mines, OGI660 (Egypt, i A. D.), Paul. Al.N.3.
German (Pape)
[Seite 149] ὁ, der Bergwerksvorsteher, Sp.