saeptio

saeptĭo, ōnis, f. [saepio].

I.

Prop., a hedging or fencing in, enclosing (post-Aug.), Vitr. 5, 12, 5; 6, 11 (8), 5.—

II.

Meton., an enclosing with a wall, etc.; with obj. gen.:

urbis,

the erection of a wall around it, Vop. Aur. 12.