Lewis & Short

Ōrĭgĕnes, is, m., = Ὠριγένης, Origen, a famous Greek Christian writer of the early part of the third century, A.D., Hier. Ep. 100; Aug. Civ. Dei, 21, 17.
Hence, Ōrĭgĕnistes, ae, m., a follower of Origen, Hier. Ep. 84, 3; id. ib. 3 in Rufin. 18.