Mogontĭăcum, i, n., a city of Germany, the mod. Mayence, or Mainz, Eutr. 7, 8. Called also Magontĭăcum, Tac. H. 4, 15; 24; 25; 33 al.: Magontĭăcus, i, f., Amm. 15, 11, 8; and Moguntĭă, ae, f., Ven. Fort. 9, 9.