demise

As nouns the difference between demise and decease

is that demise is the conveyance or transfer of an estate, either in fee for life or for years, most commonly the latter while decease is death.

As verbs the difference between demise and decease

is that demise is to give while decease is to die.

As verbs the difference between demise and disease

is that demise is while disease is (obsolete) to cause unease; to annoy, irritate.

As a noun disease is

(pathology) an abnormal condition of the body or mind that causes discomfort or dysfunction; distinct from injury insofar as the latter is usually instantaneously acquired.

In lang=en terms the difference between demise and redemise

is that demise is the conveyance or transfer of an estate, either in fee for life or for years, most commonly the latter while redemise is the transfer of an estate back to the person who demised it; reconveyance.