συνεργός
Alt. συν-εργός, όν
Etym. Ε῎ργω
I. "working together, joining or helping in work", and as Subst. "a fellow-workman, helpmate, coadjutor, accomplice", Eur., Thuc., etc.; c. dat. pers., Eur., Thuc.:—c. gen. rei, ς. τείχεος "helping to make" it, Pind.; ς. ἀδίκων ἔργων, ἀρετᾶς "helping towards" them, Eur.; ς. τινί τινος "helping" a person "in" a thing, Xen.; εἴς or πρός τι id=Xen.
II. "of the same trade as" another, "a fellow-workman, colleague", Dem.