Old Latin language vs Old Latin

Old Latin language and Old Latin both are nouns.

Word	Noun	Adjective	Verb	Adverb
Old Latin language	Yes	No	No	No
Old Latin	Yes	No	No	No

As nouns, Old Latin language and Old Latin are synonyms defined as:

Old Latin language and Old Latin: the oldest recorded Latin (dating back at early as the 6th century B.C.)

Old Latin language (noun)	Old Latin (noun)
the oldest recorded Latin (dating back at early as the 6th century B.C.)	the oldest recorded Latin (dating back at early as the 6th century B.C.)