demise: n. & v. --n. 1 death (left a will on her demise; the demise of the agreement). 2 Law conveyance or transfer (of property, a title, etc.) by demising. --v.tr. Law 1 convey or grant (an estate) by will or lease. 2 transmit (a title etc.) by death. [AF use of past part. of OF de(s)mettre DISMISS, in refl. abdicate]