cognisance vs awareness

cognisance and awareness both are nouns.

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

As nouns, cognisance and awareness are synonyms defined as:

Other synonyms of cognisance include cognizance, consciousness, knowingness.

cognisance (noun)	awareness (noun)
having knowledge of	having knowledge of
	state of elementary or undifferentiated consciousness