decease vs death

decease and death both are nouns.

Word	Noun	Adjective	Verb	Adverb
decease	Yes	No	Yes	No
death	Yes	No	No	No

As nouns, decease and death are synonyms defined as:

Other synonyms of decease include expiry.

decease (noun)	death (noun)
the event of dying or departure from life	the act of killing
	the event of dying or departure from life
	the permanent end of all life functions in an organism or part of an organism
	the absence of life or state of being dead
	a final state
	the time when something ends
	the time at which life ends; continuing until dead

decease (verb)	death (verb)
pass from physical life and lose all bodily attributes and functions necessary to sustain life