chirograph
A kind of medieval document written in duplicate (or more) on a single piece of parchment, then cut across a single word, so that each holder of a portion can prove it matches the others.
historical
A papal decree whose circulation, unlike an encyclical, is limited to the Roman curia.
The last part of a fine of land; the "foot of the fine".
obsolete
a Record […]called the Chirograph, or Foot of the Fine
Where it comes from
From Middle French chirographe, from Ancient Greek χειρόγραφος (kheirógraphos, “written with the hand”) χείρ (kheír, “hand”) + γράφω (gráphō, “write”).
Adapted from the Wiktionary entry chirograph (CC BY-SA 4.0).