Russenorsk (Norwegian pronunciation: [ˈrʉ̂sːəˌnɔʂk]; Russian: Руссено́рск, [rʊsʲɪˈnorsk]; English: Russo-Norwegian) is an extinct dual-source "restricted pidgin" language formerly used in the Arctic, which combined elements of Russian and Norwegian. Russenorsk originated from Russian traders and Norwegian fishermen from Tromsø (northern Norway) and Kola (north-western Russia). It was used extensively in Northern Norway for about 150 years in the Pomor trade. Russenorsk is important as a test case for theories concerning pidgin languages since it was used far away from most of the other documented pidgins of the world.