Purparty \Pur"par`ty\, n. [OF. pourpartie; pour for + partie a part; cf. OF. purpart a respective part.] (Law) A share, part, or portion of an estate allotted to a coparcener. [Written also {purpart}, and {pourparty}.] I am forced to eat all the game of your purparties, as well as my own thirds. --Walpole.