Examples from the Web for proprietorship
That heritage is probably just as auspicious as is proprietorship of The Tonight Show.
Indeed he felt a pleasant sense of proprietorship, as he sat alone in his new home that night.The Everlasting Arms|Joseph Hocking
She did not even glance toward Philip because she foresaw his look of proprietorship.Claire|Leslie Burton Blades
The person with whom he was conversing he stood over in an encompassing manner, with an air of proprietorship.Scarlet and Hyssop|E. F. Benson
British Dictionary definitions for proprietorship
Word Origin and History for proprietorship
1630s, "owner, by royal grant, of an American colony," probably from proprietary (n.) in sense "property owner" (late 15c., see proprietary). In general sense of "one who holds something as property" it is attested from 1640s.