The Collaborative International Dictionary
Purparty
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.
Wiktionary
purparty
n. (context legal English) A share, part, or portion of an estate allotted to a coparcener.