Black's Law Dictionary (2nd edition)dictionaries

Impropriate Rector

In ecclesiastical law. Commonly signifies a lay rector as opposed to a spiritual rector; just as irn-propriate tithes are tithes in the hands of a lay owner, as opposed to approprlate tithes, which are tithes in the hands of a spiritual owner. Brown

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