or PROPRIETARY, is he who possesses any thing as his own in the utmost degree. Such monks were called proprietors as had reserved goods and effects to themselves, notwithstanding their formal renunciation of all at the time of their profession. They are frequently mentioned in the Monast. Anglic. &c., and were to be very severely dealt with; to be excommunicated, deprived of burial, &c. Monachi proprietarii excommunicantur ab abbatis: et si in morte proprietarius inventus fuerit, ecclesiastica careat sepultura, &c. Addit. ad Matt. Par.

PRO RATA, in commerce, a term sometimes used by merchants for in proportion; as, each person must reap the profit or sustain the loss, pro rata to his interest, that is, in proportion to his stock.