C / convallo
verb transitive

convallo

2nd PP con-vallāre · 3rd PP con-vallāvi · 4th PP con-vallātum · conj. 1st
to surround with an intrenchment;; to surround, encircle figuratively
to surround with an intrenchment; hence, in gen., to surround, encircle (late Lat.): terras omnes Oceani ambitu, Gell. 12, 13, 20. —Trop., Tert. Carm. de Judicio Dom. 6.