Chippewyan language vs Chippewaian

Chippewyan language and Chippewaian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Chippewyan language	Yes	No	No	No
Chippewaian	Yes	No	No	No

As nouns, Chippewyan language and Chippewaian are synonyms defined as:

Chippewyan language and Chippewaian: the language spoken by the Chipewyan

Other synonyms of Chippewyan language include Chipewyan, Chipewyan language, Chippewaian language, Chippewyan.

Chippewyan language (noun)	Chippewaian (noun)
the language spoken by the Chipewyan	the language spoken by the Chipewyan