
This volume presents an account of the great age of European exploration, describing all known voyages across the North Atlantic to the New World prior to 1600, and of the intrepid mariners, and the adventurers who sent them forth. The roll call includes all the great explorers: Leif Ericsson, John Cabot, Verrazzano, Gomez, Jacques Cartier, Martin Frobisher, John Davis, Sir Walter Raleigh and his kinsmen Grenville and Gilbert, and a full gathering of their competitors. This work also offers a look at the imaginary lands reported by early travelers (such mythical places as Antilia and the Seven Cities, the glorious Kingdoms of Norumbega and Saguenay, and Hy-Brasil the Isle of the Blest) and examines the alleged discoverers of these lands.
Samuel Eliot Morison, The European Discovery of America: The Northern Voyages, notes to Chapter III, "The Norsemen and Vinland".
Despite an apparently courteous reception by the American Geographical Society, among scholars Horsford has far more detractors than supporters. Critics take him to task for dubious linguistic analysis, wildly expansive readings of an ancient Norse saga, speculative analysis of early maps, and fanciful interpretations of archeological remains along the Charles. Samuel Eliot Morison puts the point crisply: “In his imagination, every colonial ditch or paved cow-yard in that region became Norse.” (European Discovery of America: The Northern Voyages, p.67)
https://bostonraremaps.com/inventory/norumbega-and-vinland-o...
I find that Samuel Eliot Morison's The European Discovery of America: The Northern Voyages, instead derives it from caignedatze, an Iroquoian word for red copper, or any metal other than gold.