διεξαγωγός
From LSJ
Κύριε, βοήθησον τὸν δοῦλον σου Νῖλον κτλ. → Lord, help your slave Nilos ... (mosaic inscription from 4th-cent. church in the Negev)
English (LSJ)
ὁ, A steward, manager, Sch.Pi.O.14.13.
Spanish (DGE)
-όν
dirigente, del poderglos. a εὐθυντήριος Sch.A.Pers.764cM.