Source : Webster's Revised Unabridged Dictionary (1913)

Archimage \Ar"chi*mage\, Archimagus \Ar`chi*ma"gus\, n. [NL.;
   pref. archi- + L. magus, Gr. ?, a Magian.]
   1. The high priest of the Persian Magi, or worshipers of
      fire.

   2. A great magician, wizard, or enchanter. --Spenser.