The Etruscan term for a boundary, inscribed on stones demarcating tomb plots, but also probably extended to political boundaries. Boundary marking was important for the Etruscans in both religious and political terms and appears to have been more formalized earlier in South Etruria, but the boundary stones are better preserved on the later northern periphery of Etruria.
Historical Dictionary of the Etruscans. Simon K. F. Stoddart.