C / circāmoerĭum
noun

circāmoerĭum

gen. circāmoerii · gender neuter · decl. 2nd
circa-moerus, for murus; cf. pomerium
the space about a wall; on both sides of a wall
the space about a wall, on both sides of a wall: pomerium, verbi vim solam intuentes, postmoerium interpretantur esse; est autem magis circamoerium, Liv. 1, 44, 4.