(of goods 商品 made and sold by a particular company and protected by a registered trademark 專賣的；專營的；專利的 a proprietary medicine 專賣藥品 proprietary brands 專利品牌 a proprietary name 專利商標名
relating to an owner or to the fact of owning something 所有的；所有權的
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’.