Chipewyan language vs Chippewaian

Chipewyan language and Chippewaian both are nouns.

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

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

Chipewyan language and Chippewaian: the language spoken by the Chipewyan

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

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