Kechuan language vs Indian

Kechuan language and Indian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kechuan language	Yes	No	No	No
Indian	Yes	Yes	No	No

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

Kechuan language (noun)	Indian (noun)
the language of the Quechua which was spoken by the Incas	any of the languages spoken by Amerindians
	a native or inhabitant of India

Kechuan language (adjective)	Indian (adjective)
	of or relating to or characteristic of India or the East Indies or their peoples or languages or cultures
	of or pertaining to Native Americans or their culture or languages