i.e., at the Lord's Supper, a name given to one of the Papal bulls, from its being annually read in the Romish churches on Holy Thursday. During the dark ages it was fulminated against those who showed any favour to heretics, or who imposed any taxes upon the clergy. Its present form was given it by Urban III., in 1627, after the Reformation, and consequently it specifies all the Protestant sects for anathema and excommunication. The bull extends to those who read or keep heretical books without permission from the Pope.