Wiktionary
prosphora
n. a holy bread; a small loaf of leavened bread, used for communion in Orthodox Church. Usually consists of two layers, symbolizing the dual nature of Christ.
Wikipedia
Prosphora
A prosphoron (, offering) is a small loaf of leavened bread used in Orthodox Christian and Greek Catholic (Byzantine) liturgies. The plural form is prosphora . The term originally meant any offering made to a temple, but in Orthodox Christianity it has come to mean specifically the bread offered at the Divine Liturgy (Eucharist).