In religious studies and folkloristics, folk religion, popular religion, traditional religion or vernacular religion comprises various forms and expressions of religion that are distinct from the official doctrines and practices of organized religion. Wikipedia

Expressions of religion distinct from organized doctrines Wikidata

The common beliefs, practices, customs and other cultural elements of an ethnic or social group that are rooted in the past, but are persisting into the present due to means such as arts and crafts, songs and music, dance, foods, drama, storytelling and certain forms of oral communication. OmegaWiki

Ethnic or regional religious customs under the umbrella of an organized religion, but outside of official doctrine and practices. Wiktionary

Religious customs under the umbrella of an organized religion but outside of official doctrine and practices. Wiktionary (translation)