/ dɪˈmaɪz; NAmE / noun [ sing. ]
1.
the end or failure of an institution, an idea, a company, etc.
2.
( formal or humorous ) death :
his imminent / sudden / sad demise
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WORD ORIGIN
late Middle English (as a legal term): from Anglo-Norman French , past participle (used as a noun) of Old French desmettre dismiss, (in reflexive) abdicate, based on Latin dimittere (see dismiss ).