adpromission (ad-pr<<schwa>>-mish-<<schwa>>n). [fr. Latin adpromissio] Roman law. 1. A
suretyship contract in which the surety promises to be liable for no more than the debtor owes. •
Roman law had three types of adpromission: (1) sponsion; (2) fidepromission; and (3) fidejussion.
In addition, mandatum and pactum de con-stitutio could indirectly be used by way of guarantee. 2.
A suretyship relation. — Also termed adpromissio. [Blacks Law 8th]