Susian language vs Elamite language

Susian language and Elamite language both are nouns.

Word	Noun	Adjective	Verb	Adverb
Susian language	Yes	No	No	No
Elamite language	Yes	No	No	No

As nouns, Susian language and Elamite language are synonyms defined as:

Susian language and Elamite language: an extinct ancient language of unknown affinities; spoken by the Elamites

Other synonyms of Susian language include Elamite, Elamitic, Elamitic language, Susian.

Susian language (noun)	Elamite language (noun)
an extinct ancient language of unknown affinities; spoken by the Elamites	an extinct ancient language of unknown affinities; spoken by the Elamites