cognizance vs incognizance

cognizance and incognizance both are nouns.

Word	Noun	Adjective	Verb	Adverb
cognizance	Yes	No	No	No
incognizance	Yes	No	No	No

cognizance (noun)	incognizance (noun)
having knowledge of	a lack of knowledge or recognition
range of what one can know or understand
range or scope of what is perceived