Amerindian language vs Amerind

Amerindian language and Amerind both are nouns.

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

As nouns, Amerindian language and Amerind are synonyms defined as:

Amerindian language and Amerind: any of the languages spoken by Amerindians

Amerindian language (noun)	Amerind (noun)
any of the languages spoken by Amerindians	any of the languages spoken by Amerindians

Amerindian language (adjective)	Amerind (adjective)
	of or pertaining to Native Americans or their culture or languages