circumvallatory

Here a broad, deep, circumvallatory trench — hewn from the solid rock — was defended by a wall of great strength erected upon its inner edge.

Tales of the Grotesque and Arabesque. In Two Volumes. Vol. II 1840

Here, a broad, deep, circumvallatory trench, hewn from the solid rock, was defended by a wall of great strength erected upon its inner edge.

The Works of Edgar Allan Poe — Volume 5 Edgar Allan Poe 1829