cultism
     n 1: devotion to the doctrine or a cult or to the practices of a
          cult
     2: religious zeal; willingness to serve god syn: idolatry, devotion,
         veneration
see also:
idolatry devotion veneration 

52 moby thesaurus words for "cultism":
   sabbatarianism, adoration, celebration, ceremonialism, churchgoing,
   co-worship, conformity, cult, cultus, devotedness, devotion,
   devoutness, dulia, dutifulness, faith, faithfulness, formalism,
   homage, hyperdulia, idolatry, ism, latria, liturgics, liturgiology,
   liturgism, love of god, mystique, observance, pietism, piety,
   piousness, prostration, religion, religionism, religiousness,
   reverence, ritualism, rituality, ritualization, sabbatism,
   sacramentalism, sacramentarianism, solemn observance,
   solemnization, symbolics, symbolism, theism, transcendent wonder,
   veneration, worship, worshipfulness, worshiping