Definition of "preservatory"

How many Masters have some stately Houses had, in the age of a small Cottage, that hath, as it were, lived, and dyed with her old Master, both dropping down together. Such vain Preservatories of us, are our Inheritances, even once removed: but look on it more Removes off, and continuing in thy Name, yet how little doth that concerne Thee (though the first Purchaser, or his Heire) Lazy Posterity, when they heare it so called know it by the Name, but not as thine; […]

1654, Richard Whitlock, Zootomia; Or, Observations on the Present Manners of the English

But, all this while, the intentions and endeavours must be no other than preservatory; however it pleaseth God to order the events

1649, Joseph Hall, Resolutions and Decisions of Divers Practicall cases of Conscience