Lewis Short
(adj.adv.) : massālis, e, adj.1. massa
* Of or belonging to a mass, that constitutes a mass (eccl. Lat.): massalis moles,i. e. chaos,Tert. adv. Hermog. 30: summa, the All-embracer, i. e. Christ, id. adv. Marc. 4, 18.—Hence, adv.: massālĭter, in a mass, all together (eccl. Lat.), Tert. adv. Valent. 16.
Charlton T. Lewis, Charles Short, A Latin Dictionary