συνεργάτης
From LSJ
Ἡ δ' ἐμὴ ψυχὴ πάλαι τέθνηκεν, ὥστε τοῖς θανοῦσιν ὠφελεῖν → My soul died long ago so that I could give some help to the dead
English (LSJ)
[ᾰ], ου, ὁ,
A fellow-workman, helpmate, πεμφθεὶς . . σοὶ ξ. S.Ph.93; σκότος ξ. E.Hipp.417: c. gen. rei, an accomplice or assistant in, ἄγρας Id.Ba.1146; fem., συνεργ-άτις φόνου Id.El.100.
