Lewis & Short

† ogdŏas, ădis, f., = ὀγδοάς.

  1. I. In gen., the number eight (eccl. Lat.), Hier. Ep. 36, n. 9.
  2. II. In partic., one of the œons of Valentinus, Tert. adv. Val. 7 and 20; id. Anim. 37.