prae-saepĭo (-sēpĭo), psi, ptum, 4, v. a.,
to fence in front , to block up , barricade (class.): aditus atque itinera trabibus, Caes. B. C. 1, 27: loca montuosa sublicis, id. ib. 3, 49: omni aditu praesaepto, id. B. G. 7, 77.
praesaepio (ō) (-sēpio) psī, ptus, īre, to fence in front, block up, barricade: aditūs trabibus, Cs...
An Elementary Latin Dictionary