Specific word for discrimination based on religion [duplicate]

Religious discrimination is the most widely use term, and there doesn't appear to a well accepted single-word term for this. Although religionism is most often described as a fervent religious zeal, it can also be used to describe religious discrimination:

  1. excessive religious ardour or zeal
  2. extreme piety
  3. discrimination or prejudice on the basis of religion or religious beliefs.

…according to Wiktionary at least—I'm unable to find another source for this usage.

On a side note, Wikipedia 's entry for religionism redirects to religious discrimination.