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.
MOGONTIACUM or MAGONTIACUM(Mainz), a city of Gallia, on the Rhine. On this spot was built a monument...
Dictionary of Greek and Roman Geography