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folie

American  
[faw-lee] / fɔˈli /

noun

French.

plural

folies
  1. madness; insanity.


Etymology

Origin of folie

First recorded in 1795–1805

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In psychiatry there is a condition known as folie à deux, which describes how two people share a psychosis.

From Salon • Jun. 21, 2019

In the ideal production, it creates the sense of fire meeting fire in a folie à deux between two ill-matched yet inexorably bound lovers.

From New York Times • Apr. 17, 2019

A folie à deux is a forgivable response to the rigors of middle school.

From The New Yorker • Feb. 8, 2019

Some have suggested their relationship was a classic folie a deux, a shared psychosis in which a delusional belief is transferred from one person to another.

From BBC • May 16, 2017

In 1828 he published a work De l'irritation et de la folie, and towards the end of his life he attracted large audiences by his lectures on phrenology.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various