This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “From Venetan [Term?]? Cf. Venetan vegro and the related terms below, especially Vegra. Given Italian possessionef, Italian might have borrowed the Venetan adjective to modify its noun; alternatively, Venetan might have borrowed the Italian noun, or its cognate may be identical. Consider the village’s location in the far northeast of Emilia-Romagna, very near the border with the Rovigo Province of the Veneto Region.”
Possessione Vegra on Wikidata.Wikidata 