partĭcĭpālis — Lewis & Short
partĭcĭpālis, e, adj.particeps,
I sharing, partaking, participant (ante-and postclass.):
curae,Dig. 1, 11, 1 (al. principali). —In gram., participial:
verba,Varr. L. L. 10, § 34 Müll.