Lewis Short
(adverb) : nĭtĭdĭuscŭlus, a, um
* Adj. dim. [nitidus], somewhat more shining (Plautin.): caput,Plaut. Ps. 1, 2, 84.—Hence, : nĭtĭ-dĭuscŭlē, a little more finely, sprucely: ut curer,Plaut. Ps. 3, 1, 8.
Charlton T. Lewis, Charles Short, A Latin Dictionary