LAT

Lewis Short

(adj.adv.) : in-dŭbĭus, a, um, adj.
* Not doubtful, certain (post-Aug.): innocentia plurimorum,Tac. A. 14, 45: exempla,Quint. 5, 13, 24.— Hence, adv.: indŭbĭē, doubtlessly, Cassiod. Fragm. in Auct. Class. Tom. 3, 355 Mai.
Charlton T. Lewis, Charles Short, A Latin Dictionary

TLL

s. TLL
Thesaurus Linguae Latinae
memory