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folie à deux

[ fo-lee uh doo; French faw-lee a ]

noun

, Psychiatry.
, plural fo·lies à deux [fo-, leez, , uh, , doo, faw-lee z, a, , dœ].
  1. the sharing of delusional ideas by two people who are closely associated.


folie à deux

/ ˈfɒlɪ æ ˈdɜː /

noun

  1. psychiatry mental illness occurring simultaneously in two intimately related persons who share some of the elements of the illness, such as delusions


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Word History and Origins

Origin of folie à deux1

Borrowed into English from French around 1890–95

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Word History and Origins

Origin of folie à deux1

French: madness involving two (people)

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