Black's Law Dictionary (2nd edition)dictionaries

Defendemus

Lat. A word used iu grants and donations, which binds the donor and his heirs to defend the donee, if any one go about to lay any incumbrance on the thing glven other than what is contained in the deed of donation. Bract. 1. 2, c. 16

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