The name given by the canonists to deeds of which both partB were written on the same piece of parchment with some word or letters of the alphabet written between them, through which the parchment was cut in such a manner as to leave half the word on one part and half on the other. It thus corresponded to the chirograph or indenture of the common law. 2 Bl. Comm 295, 296. A deed or other written instrument under the hand and seal of all the parties.