Gloria

According to the Old English Dictionary:

a, an;

gloria

pl. glorian; m. A Gloria, a name for a liturgical formula:--Se gloria þæs forman sealmes, R. Ben. 69, 3: 68, 8. Under ánum gloria (glorian, R. Ben. I. 47, 6), 40, 22. Tódǽled on twégen glorian, 38, 3: 42, 13. gloria