subintro

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

sŭb-intro, āvi, ātum, 1, v. n.,

to go into secretly , to enter by stealth , steal into (late Lat.); trop.: populo bellicoso ludorum scenicorum subintravit insania, Aug. Civ. Dei, 1, 32; so Tert. adv. Marc. 5, 3 al.