What today we call the church yard. The phrase was often used in wills, being specified as where a person wished to be buried. In particular, it appeared in some Lollard wills, as part of an expression of humility, since those entering the church would walk over the grave. [< OldEngl. haga = a piece of enclosed land] -
Cf. Haga1
Dictionary of Medieval Terms and Phrases. Christopher Coredon with Ann Williams.