Noun
Montanism (uncountable)
(Christianity) The doctrines of a heretical sect of the second to fifth centuries in Asia Minor, who held millenarian beliefs.
Other Christian sects or movements * Montanus, founder of Montanism an early Christian movement of the 2nd century. Source: Internet
These views may have led him to adopt Montanism with its ascetic rigor and its belief in chiliasm and the continuance of the prophetic gifts. Source: Internet