Added 8 October 2026 latium noun Categories: PlacesRare Words noun ! Definition from WordNet 3.1, Princeton University. More about latium at Wordnik → Where our words come from → An ancient region of west central Italy (southeast of Rome) on the Tyrrhenian Sea. Related Words: laziolatincapitollatindomromeromesprovinceillyricumlatinitycapitoliumlaconiamediolanum Back to today's word