One of the mysteries of the English language finally explained.
The community of Port-Royal as a centre of Jansenism; (hence) the doctrines of the Jansenists. Also: the wider community following the principles and methods of Port-Royal in education or philosophy; a comparable institution elsewhere.
Mid 17th century. From Port-Royal, the name of a convent near Versailles, which, in the 17th cent., housed a lay community which became well-known for its strong Jansenist leanings and its work in education and philosophy.
Port-Royal/ˌpɔː rɔɪˈjal//ˌpɔː rwɑːˈjal/
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