East Germanic vs East Germanic language

East Germanic and East Germanic language both are nouns.

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

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

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

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