Azymites

Azymites, from Gr. Azyma, "the unleavened bread" of the Jewish Passover, a term applied by Greek Christians to those who followed the practice of the Latin Church in using unleavened bread in the Eucharist. The controversy between the Prozymites or Fermentarians and the Azymites waxed hot in the eleventh century, but the Romish Church still adheres to the use of an unleavened wafer.