Jus Tripertitum
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
In the Roman law. The law of wills. Sir Henry Maine says that it is so called because of its three-fold derivation from the imperial constitutions, the civil law, and the praetorian edicts.
Anc. Law, 207.