συμπράκτωρ
From LSJ
Dante Alighieri, Paradiso, XXXIII, v. 145
English (LSJ)
Ion. συμπρήκτωρ, ορος, ὁ,
A helper, assistant, Hdt.6.125, cf. X.Cyr.3.2.29: c. gen. rei, σ. ὁδοῦ a companion in travel, S.OT 116; συμπράκτορες τῆς αἰτίας involved as accomplices in the charge, Antipho 3.4.6.