ˈpīəˌtizəm noun
( -s )
Etymology: German pietismus, from pietist + -ismus -ism
1. usually capitalized : a 17th century religious movement originating in Germany that emphasized the need for a revitalized evangelical Christianity over against an excessive formalism and intellectualism, and stressed informal devotional meetings, Bible study, and personal religious experience
2.
a. : emphasis on devotional experience and practices
b. : affectation of devotion : religiosity