ephemerius

from The Century Dictionary.

• noun In the Gr. Ch.:
• noun The priest whose turn it is to officiate; the officiant or celebrant.
• noun A priest in charge; a parish priest.
• noun A domestic chaplain.
• noun A monastic officer whose duty it is to prepare, elevate, and distribute the loaf used at the ceremony called the elevation of the panagia. See panagia.