Law. to pass by bequest, inheritance, or succession.
Origin: 1400–50; late Middle English dimis(s)e, demise < Old French demis (past participle of desmetre) < Latin dīmissum (past participle of dīmittere); see demit1, dismiss
1442, from M.Fr. demise, fem. pp. of demettre "dismiss, put away," from des- "away" (from L. dis-) + M.Fr. mettre "put," from L. mittere "let go, send." Originally "transfer of estate by will," meaning extended 1754 to "death" because that's when this happens.