circum-vallo, āvi, ātum, 1, v. a.,
I to surround with a wall , to circumvallate; in milit. lang., to blockade , invest , encompass in a hostile manner (class., esp. in the histt.): circumvallare loci natura prohibebat, Caes. B. G. 7, 17; 7, 11; id. B. C. 3, 43; Liv. 10, 35, 12 and 15; 28, 3, 4, and in part. perf. pass. Caes. B. G. 7, 44 fin. ; Cic. Att. 9, 12, 1; Liv. 43, 19, 9.—
B Trop.: tot res repente circumvallant, beset , beleaguer , Ter. Ad. 302.—
II In gen., to surround , encompass : locum duobus sulcis, Col. 11, 3, 4; Claud. IV. Cons. Hon. 11: insula fluctisono circumvallata profundo, Sil. 12, 358.