Pronunciation: - ' va- ˌ l ā t
Function: transitive verb
Inflected Form: -lat · ed ; -lat · ing
Etymology: Latin circumvallatus, past participle of circumvallare to surround with siege works, from circum- + vallum rampart ― more at WALL
Date: circa 1798
: to surround by or as if by a rampart
– cir · cum · val · la · tion \ - ˌ va- ' l ā -sh ə n \ noun