septemvĭrālis — Lewis & Short
septemvĭrālis, e, adj.septemviri,
I of or belonging to the septemvirs, septemviral:
auctoritas,Cic. Phil. 12, 9, 23.— Subst.: septemvĭrāles, ĭum, m., the septemvirs, Cic. Phil. 13, 12, 26.