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.