Early 19th century; earliest use found in Monthly Repository. From supranatural + -ism, probably after German Supranaturalismus. Compare Dutch supranaturalisme, French supranaturalisme.
Definition of supranaturalism in US English:
supranaturalism
noun
Supernaturalism.
Origin
Early 19th century; earliest use found in Monthly Repository. From supranatural + -ism, probably after German Supranaturalismus. Compare Dutch supranaturalisme, French supranaturalisme.