a name given to those, among the Lutherans, who follow the sentiments of George Calixtus, a celebrated divine, and professor at Helmstadt, in the duchy of Brunswick, who died in 1656: he opposed the opinion of St. Augustin, on predestination, grace, and free-will, and endeavoured to form an union among the various members of the Roman, Lutheran, and reformed churches; or, rather, to join them in the bonds of mutual forbearance and charity.

Calixtins also denote a sect in Bohemia, derived from the Hussites, about the middle of the 15th century, who affected the use of the cup, as essential to the eucharist. And hence their name; which is formed from the Latin calix, a cup.

The Calixtins are not ranked by Romanists in the list of heretics, since in the main they still adhered to the doctrine of Rome. The reformation they aimed at terminated in the four following articles. 1. In restoring the cup to the laity, 2. In subjecting the criminal clerks to the punishment of the civil magistrate, 3. In stripping the clergy of their lands, lordships, and all temporal jurisdiction. 4. In granting liberty to all capable priests to preach the word of God.