Proprietary

n. [Lat. proprietarius, Fr. propriétaire, Pr. proprietari, Sp. propietario, Pg. & It. proprietario. See PROPRIETY.]

1. A proprietor or owner; one who has the exclusive title to a thing; one who possesses or holds the title to a thing in his own right. Fuller.
2. A body of proprietors taken collectively.
3. (Monasteries.) A monk who had reserved goods and effects to himself notwithstanding his renunciation of all at the time of profession.