Utraquism

15th-century Protestant doctrine held by the Hussites

Utraquism, also called Calixtinism, was a belief amongst Hussites, a reformist Christian movement, that communion under both kinds should be administered to the laity during the celebration of the Eucharist. It was a principal dogma of the Hussites and one of the Four Articles of Prague.

This keyword could refer to multiple things. Here are some suggestions: