erudition vs eruditeness

erudition and eruditeness both are nouns.

Word	Noun	Adjective	Verb	Adverb
erudition	Yes	No	No	No
eruditeness	Yes	No	No	No

As nouns, erudition and eruditeness are synonyms defined as:

Other synonyms of erudition include encyclopaedism, encyclopedism, learnedness, learning, scholarship.

erudition (noun)	eruditeness (noun)
profound scholarly knowledge	profound scholarly knowledge