Oregon

From earlier Ouragon (1765), of obscure origin. Various etymologies have been proposed:

A clipping of French Ouariconsint, itself a corruption of Ouisconsin(g) (“Wisconsin”)

Borrowing from French ouragan (“hurricane”)

Borrowing from Abenaki wligen (“good”), cf. Algonquin wauregan (“beautiful”)

Borrowing from Shoshone ogoe (“river”) + paanangkwa (“west”)

Borrowing from Chinook Jargon ulakan (“candlefish”)

Borrowing from Spanish orégano (“marjoram”)

See Wikipedia article on the toponym Oregon for more information.