antimension

…than upon relics, though the antimension (the cloth upon which the divine liturgy is celebrated) always contains a relic. The attitude of the 16th-century Protestant Reformers toward relics was uniformly negative, and the veneration of relics has not been accepted in Protestantism.

…into a silken cloth (antimension), a practice still used in some churches, and the Eucharist could be celebrated only upon an altar that was covered with such an antimension. In times of persecution the Eucharist could be celebrated upon any table, as long as it was covered with the…