English
Jansenism
From Jansen + -ism.
A compound of Jansen + -ism
The story
Named after Cornelius Jansen.
Today it means
noun The doctrine of Cornelius Jansen and his followers, which emphasise original sin, divine grace and predestination; condemned as a heresy by Pope Innocent X in 1653.
Language periods are conventional ranges, not dates for this word.
Etymograph / Jansenism