(of goods 商品 made and sold by a particular company and protected by a registered trademark 专卖的；专营的；专利的 a proprietary medicine 专卖药品 proprietary brands 专利品牌 a proprietary name 专利商标名
relating to an owner or to the fact of owning something 所有的；所有权的
Word Originlate Middle English (as a noun denoting a member of a religious order who held property): from late Latin proprietarius ‘proprietor’, from proprietas, from proprius ‘one's own, particular’.