NORRONA, Old Norse, the equivalent of "Nordic," the language of the remote
  north western part of Continental Europe. It is claimed that a common tongue (much like
  that of the ancient Celts) existed for much of Germany and Scandinavia, and that this
  persists in modern Iceland. This common language is sometimes mentioned as the Donsk
  tunga, or "Danish tongue." The name was applied to these people by the
  Anglo-Saxons with the sense of "northern tongue," but interestingly the Gaelic
  equivalent "noir," indicates the "east," as these folk lived to the
  eastward of their land holdings. According to Sturlason's mythological history, the people
  of Odin were driven from homelands in the south east of Europe by the Roman conquests.
  They intruded upon the Celts and Finns in Germany and Scandinavia. It is said of Odin that
  "He had many sons; he won kingdoms far over Saxland (Germany) and set his sons as
  rulers over them. From there he fared north to the sea and found himself dwelling in the
  island called Odenso (Odin's Island) in Fyn." His final conquest was Sweden and he
  established his religion at Upsala. His Anglo-Saxon descendants, named the Ynglings or
  Inglings, after King Ingvi-Frey, invaded Britain and renamed Celtic Britain
  "England." His Scandinavian progeny , pressured by an overgrowth of population
  invaded Britain at a later date. These were the Fingall and Duthgall of Gaelic tradition,
  the sea-pirates the English called the "Vikings." 
  The Norsemen created the French province of Normandy. Erling Monson has noted that
  these rovers "invaded the north of Germany, the Baltic Provinces and Russia as well
  as Holland; but it was the British Isles that had the greatest attraction for them."
  England, of course, had Danish kings following the invasions of Swein Forkbeard and Canute
  the Great. Ireland also had an attraction for them as it also had fertile lands and wealth
  in precious metals, but northern Scotland had little excepting land markers which the
  Vikings used in setting sea-courses along the east or west coasts of Britain. This was
  also the place of the Great Caledonian Forest, which they used for repairing their ships.
  Eventually, they found that this forest contained human and animal wolves and they torched
  them to eliminate ground-cover. The German and Scandinavian northerners sometimes ruled
  portions of Scotland, especially the north western islands and highlands. Sometimes they
  co-existed with the Gaelic tribesman in these parts but as often were captured and became
  bondsmen to a clan. Their offspring eventually became freemen and indistinguishable from
  their countrymen in language or habits. The Mackay patronym is said to be Teutonic, but
  they certainly had strong Gaelic and Norse bloodlines as well.