loquacity vs loquaciousness

loquacity and loquaciousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
loquacity	Yes	No	No	No
loquaciousness	Yes	No	No	No

As nouns, loquacity and loquaciousness are synonyms defined as:

Other synonyms of loquacity include garrulity, garrulousness, talkativeness.

loquacity (noun)	loquaciousness (noun)
the quality of being wordy and talkative	the quality of being wordy and talkative