Russenorsk is an extinct dual-source

Russenorsk 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 and Kola. 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.
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