Black's Law Dictionary (2nd edition)dictionaries

Non Dimisit

L. Lat He did not de-mise. A plea resorted to where a plaintiff declared upon a demise without stating the Indenture in an action of debt for rent. Also, a plea in bar, in replevin, to an avowry for arrears of rent, that the avowant did not demise

Source: Black’s Law Dictionary 2nd Ed (1910)