in Ancient Geography, a part of Germany, surrounded with the Montes Sudeti (Ptolemy); now called Bohemia. It took its name from the Boii, a people of Gaul, who removed thither before Caesar's expedition into that country, (Cæsar); though he seems to err in the name. The Boii were afterwards driven out by the Marcomanni, and settled in the west of Vendelicia, which was afterwards called Bayern, and hence the name Bavaria.