purparty
A share, part, or portion of an estate allotted to a coparcener.
I am forced to eat all the game of your purparties, as well as my own thirds.
1793 October 6, Horace Walpole, letter to “the Miss Berrys” (sisters Mary and Agnes Berry),
Where it comes from
From Old French porpartie, from por (“for”) and partie (“a part”). Compare Old French purpart (“a respective part”).
Adapted from the Wiktionary entry purparty (CC BY-SA 4.0).