non demiset (non d<<schwa>>-mI-zit). [Latin “he did not demise”] Hist. 1.A defensive plea in an action for rent when the plaintiff failed to plead that the demise was by indenture. • It could not be used if the plaintiff alleged an indenture. 2. In a replevin action, a plea in bar to an avowry

for arrears of rent.

[Blacks Law 8th]