noun
also an·ti·pen·di·um ˌantə̇ˈpendēəm, ˌantē-
( plural antependiums or antepen·dia also antipendia -dēə)
Etymology: Medieval Latin antependium, from (assumed) antependēre to hang in front, from Latin ante- + pendēre to hang — more at pendant
: a hanging for the front of an altar, pulpit, or lectern