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What is the origin of bovarism?

Bovarism, “an exaggerated, especially glamorized, estimation of oneself,” also spelled bovarysm and bovarysme (capitalized and uncapitalized), is a borrowing from French bovarysme, a derivative of the family name Bovary, the married surname of Emma Bovary, née Rouault, the eponymous protagonist of Gustave Flaubert’s novel Madame Bovary (1857) who was prone to escapist daydreaming. The French philosopher Jules de Gaultier is credited with coining the term in his 1902 work, La Bovarysme. Bovarism entered English in the first half of the 20th century.