FOLIE A CINQ By N., Pam M.S. - May 11, 2013 a shared psychotic disorder where 5 members of the same family have similar or identical delusions. It is a French phrase meaning 'insanity of five'. FOLIE A CINQ: "Folie a cinq is French for a shared disorder." Related Psychology Terms FOLIE A QUATRE FOLIE A TROIS FOLIE A DEUX DELUSIONAL DISORDER SUBSTANCE-INDUCED PSYCHOTIC DISORDER SEMANTIC GENERALIZATION UNDIFFERENTIATED SCHIZOPHRENIA EXTENSIONAL MEANING CYCLOID PSYCHOSIS PARANOIA Cite this page: N., Pam M.S., "FOLIE A CINQ," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/folie-a-cinq/ (accessed June 4, 2020).