a pidgin based largely on Nootka, Lower Chinook, French, and English, once widely used as a lingua franca from Alaska to Oregon.
Origin of Chinook Jargon
First recorded in 1830–40
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British Dictionary definitions for chinook jargon
a pidgin language containing elements of Native American languages, English, and French: formerly used among fur traders and Indians on the NW coast of North America
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012