Simul Cum
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Lat. Together with. In actions of tort and in prosecutions, where several persons united in committing the act complained of, some of whom are known and others not, it ls usual to allege in the declaration or indictment that the persons therein named did the injury in question, "together with (simul ,cum) other persons unknown."