What is "maphrian"

The Maphrian ( Maphryānā (in east syriac), also rendered as mafriono (in west syriac). was the prelate in the Syriac Orthodox Church who ranked second in the hierarchy after the Syriac Orthodox Patriarch of Antioch. The Maphrian, originally acted as the head of the church, in a position similar to an exarch, within the Sassanian Empire and lands outside the control of the Roman Empire. The title was abolished in 1860 as a result of a decreasing number of Jacobites outside of the Tur Abdin region, however was resurrected in 1964 to be used by the head of the Jacobite Syrian Christian Church as Catholicos of India, retaining the position as the second highest prelate of the wider Syriac Orthodox Church.