Magus

from WordNet (r) 3.0 (2006)

magus
    n 1: a magician or sorcerer of ancient times
    2: a member of the Zoroastrian priesthood of the ancient
       Persians

from The Collaborative International Dictionary of English v.0.48

magus \magus\ n.
   1. a magician or sorcerer of ancient times.
      [WordNet 1.5]

   2. a member of the Zoroastrian priesthood of the ancient
      Persians.
      [WordNet 1.5]