perkiness vs pertness

perkiness and pertness both are nouns.

Word	Noun	Adjective	Verb	Adverb
perkiness	Yes	No	No	No
pertness	Yes	No	No	No

As nouns, perkiness and pertness are synonyms defined as:

Other synonyms of perkiness include archness, impertinence, sauciness.

perkiness (noun)	pertness (noun)
inappropriate playfulness	inappropriate playfulness
cheerfulness that bubbles to the surface	quality of being lively and confident