East Germanic language vs East Germanic

East Germanic language and East Germanic both are nouns.

Word	Noun	Adjective	Verb	Adverb
East Germanic language	Yes	No	No	No
East Germanic	Yes	No	No	No

As nouns, East Germanic language and East Germanic are synonyms defined as:

East Germanic language and East Germanic: an extinct branch of the Germanic languages

East Germanic language (noun)	East Germanic (noun)
an extinct branch of the Germanic languages	an extinct branch of the Germanic languages