proprietary

proprietary is a   Noun

Definition:

[1] A proprietor or owner; one who has exclusive title to a thing; one who possesses, or holds the title to, a thing in his own right. Fuller.

[2] A body proprietors, taken collectively.

[3] A monk who had reserved goods and effects to himself, notwithstanding his renunciation of all at the time of profession.

Synonyms: