συνεργής
From LSJ
ὁ δ' εὖ ἔρδων θεοὺς ἐλπίδι κυδροτέρᾳ σαίνει κέαρ → but he who does well to the gods cheers his heart with a more glorious hope
English (LSJ)
ές,
A working with, co-operating, Aristeas 242. Adv., -γῶς ἔχειν εἴς τι Phld.Oec. p.19 J.
Greek (Liddell-Scott)
συνεργής: -ές, ὁ μετά τινος ἐργαζόμενος, συνεργὲς εὐλόγως γενόμενον Ἀριστέας περὶ τῶν Ἑβδομ. σ. 125.