terrĭtōrĭum

ii, n.

terra

I. the land round a town, a domain, district, territory: colonis locus communis, qui prope oppidum relinquitur, territorium, Varr. L. L. 5, § 21 Müll.; cf.: territorium est universitas agrorum intra fines cujusque civitatis, Dig. 50, 16, 239 fin.: florentis coloniae territorium, Cic. Phil. 2, 40, 102; so, Neapolitanum, Pall. Mart. 10, 16: extra territorium abire, Plin. 29, 6, 34, § 106: territoria earum (civitatum) habitare, Amm. 16, 2, 12.
Lewis & Short
A Latin Dictionary, 1879
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