sŭb-intro

āvi, ātum, 1, v. n.
I. 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.
Lewis & Short
A Latin Dictionary, 1879
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