Athapascan vs Athapaskan

Athapascan and Athapaskan both are nouns.

Word	Noun	Adjective	Verb	Adverb
Athapascan	Yes	No	No	No
Athapaskan	Yes	No	No	No

As nouns, Athapascan and Athapaskan are synonyms defined as:

Athapascan and Athapaskan: a group of Amerindian languages (the name coined by an American anthropologist, Edward Sapir)

Other synonyms of Athapascan include Athabascan, Athabaskan, Athapaskan language.

As nouns, Athapascan and Athapaskan are synonyms defined as:

Athapascan and Athapaskan: a member of any of the North American Indian groups speaking an Athapaskan language and living in the subarctic regions of western Canada and central Alaska

Other synonyms of Athapascan include Athabascan, Athabaskan.

Athapascan (noun)	Athapaskan (noun)
a group of Amerindian languages (the name coined by an American anthropologist, Edward Sapir)	a group of Amerindian languages (the name coined by an American anthropologist, Edward Sapir)
a member of any of the North American Indian groups speaking an Athapaskan language and living in the subarctic regions of western Canada and central Alaska	a member of any of the North American Indian groups speaking an Athapaskan language and living in the subarctic regions of western Canada and central Alaska