Wa·kash·an 
(wä-k
ăsh
ən, wô
k
ə-sh
ăn
′)
n. A family of North American Indian languages spoken by the Nootka and other peoples of Washington and British Columbia.
[Alteration of Wakashian, nonce-word used to describe the Nootka by Captain James Cook in his account of the Pacific Northwest : Nootka wa·ka·š, good (considered by Cook to be the characteristic exclamation of the Nootka ) + -IAN.]
Wa·kashan adj.