cognisance vs cognizance

cognisance and cognizance both are nouns.

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

As nouns, cognisance and cognizance are synonyms defined as:

Other synonyms of cognisance include awareness, consciousness, knowingness.

cognisance (noun)	cognizance (noun)
having knowledge of	having knowledge of
	range of what one can know or understand
	range or scope of what is perceived