Persism /(?)/

Per·sism

Persism

n.
  1. An ancient Persian religion, esp. as represented by the Magi; a form of Zoroastrianism.
    This system we shall call 'Persism', in order to free ourselves of the popular associations still connected with such terms as magism, Parseeism, and so forth; meaning by 'Persism' the teaching of Zarathustra as it affected the Greek and Latin world.
    — E. Vernon Arnold.

Persism

n.
  1. A Persian idiom.