The story
From eradication + -ism. Coined around 1900 by people from the circle of Dwight L. Moody.
First known use, by meaning
- from early 20th c. Strict holiness; a radical, Wesleyan holiness teaching that considers that sin is or will be completely eliminated from true believers (originally used only by opponents)
Etymology from Wiktionary, CC BY-SA 4.0.