Extenta Manerii
A New Law Dictionary and Glossary · Alexander M. Burrill · 1850
A New Law Dictionary and Glossary
Lat. (The extent or survey of a manor.) The title of a statute passed 4 Edw. I. st. 1; being a sort of direction for making a survey or terrier of a manor, and all its appendages.
2 Beeves' Hist. Eng. Law, 140.