The story
From Edwardsian + -ism.
Etymology from Wiktionary, CC BY-SA 4.0.
Edwardsianism
Today it means: A school of theology that grew up among the Congregationalists of New England, originating in the year 1732, when Jonathan Edwards began his constructive theological work, culminating a little before the American Civil War, declining afterwards, and rapidly disappearing after the year 1880. Full definition →