Definition of folie à deux in English:

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folie à deux

Pronunciation: /fôˌlē ä ˈdœ/

noun (plural folies à deux /fôˌlēz/)

Delusion or mental illness shared by two people in close association.
Example sentences
  • They each reinforce each others insanity - in psychology this is called a folie à deux or a shared madness.
  • As noted above, we could uncover no causative or precipitating emotional or other factors for this folie à deux dissociative disorder.
  • Addicts of flaming folies à deux will be pleased to learn that this season is providing a promisingly thorny set of variations on the theme of really tough love.

Origin

Early 20th century: French, literally 'shared madness'.

For editors and proofreaders

Syllabification: fo·lie à deux

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