Amerind vs Amerindian language

Amerind and Amerindian language both are nouns.

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

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

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

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

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