Kechua vs Amerindian language

Kechua and Amerindian language both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kechua	Yes	No	No	No
Amerindian language	Yes	No	No	No

As nouns, Amerindian language is a hypernym of Kechua; that is, Amerindian language is a word with a broader meaning than Kechua:

Kechua (noun)	Amerindian language (noun)
the language of the Quechua which was spoken by the Incas	any of the languages spoken by Amerindians
a community of South American Indians in Peru who were formerly the ruling class of the Incan Empire
a member of a South American Indian people in Peru who were formerly the ruling class of the Inca empire