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.