Lewis Short
(adjective) : partĭcĭpālis, e, particeps
* Sharing, partaking, participant (ante-and postclass.): curae,Dig. 1, 11, 1 (al. principali). —In gram., participial: verba,Varr. L. L. 10, § 34 Müll.
Charlton T. Lewis, Charles Short, A Latin Dictionary