Venetic /vəˈnɛtɪk/ adjective4 •(historical) Of or related to the Veneti, an ancient people of northeastern Italy. •(historical) Of or related to Venetic, the language of the Adriatic Veneti. •Of or related to the Veneto, the mainland opposite Venice. •(historical) Of or related to the Veneti, an ancient people of northern Brittany.