ANDERNACHT, a city of Cologne, in the circle of the Lower Rhine. It is situated in a plain on the river Rhine; and is fortified with a wall, castle, and bulwarks. It has a trade in stone jugs and pitchers, which are sent to the mineral waters at Dunchstein. There are three monasteries here and several churches. E. Long. 7. 4. N. Lat. 50. 27.