Danube name meaning "strong, swift" (akin to Sanskrit "iṣiras" "swift"). In Latin, the Danube was variously known as ' or as '. The Dacian/Thracian name was "Donaris" for the upper Danube and "Istros" for the lower Danube. The Thraco-Phrygian name was "Matoas", "the bringer of luck". The Latin name is masculine, as are all its Slavic names, except Slovenian, (the name of the Rhine is also masculine in Latin, most of the Slavic languages, as well as in German). The German "Donau" (Early Modern German "Donaw, Tonaw", Middle High German "Tuonowe") is feminine, as it has been re-interpreted as containing the
Army of the Danube March 1799, the Army of the Danube engaged in two major battles, both in the southwestern German theater. At the Battle of Ostrach, 20–22 March 1799, the first battle of the War of the Second Coalition, Austrian forces, under the command of Archduke Charles, defeated French forces. The French suffered significant losses and were forced to retreat from the region, taking up new positions at Messkirch (also spelled Mößkirch or Meßkirch), and then at Stockach and Engen. At the second battle, in Stockach, on 25 March 1799, the Austrian army achieved a decisive victory over the French forces, and again