What is De Excommunicato Deliberando?

Legal Definition
A de excommunicato deliberando is a writ which issued out of chancery to release a prisoner from the county jail after the bishop had certified the prisoner's reconciliation with the Church, following his arrest and imprisonment under a writ de excommunicato capiendo.
-- Wikipedia
Legal Definition
A writ to deliver an excommunicated person, who has made satisfaction to the church, from prison. 3 Bl. Comm. 102.
-- Black's Law Dictionary
Legal Definition
A writ to deliver one who had been excommunicated.
-- Ballentine's Law Dictionary