Lewis Short
(verb) : perrepto, āvi, ātum, 1, perrepo
* To creep or crawl through: omnes plateas perreptavi,Plaut. Am. 4, 1, 3; so, omnes latebras,id. Rud. 1, 4, 4: perreptavi usque omne oppidum ad portam,Ter. Ad. 4, 6, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary