perrepto, āvi, ātum, 1, v. freq. a. [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. 715.
per-rēptō āvī, —, āre, freq, to creep over, crawl through: usque omne oppidum, T. ...
An Elementary Latin Dictionary