azyme

[ az-ahym ]
/ ˈæz aɪm /

noun Western Church.

unleavened bread used in a Eucharistic service.

Origin of azyme

1350–1400; < Late Latin azȳma (noun), Latin azȳmus (adj.) unleavened < Greek ázȳmos, equivalent to a- a-6 + -zȳmos (derivative of zȳ́mē leavening; see zyme)