delusional disorder vs folie

delusional disorder and folie both are nouns.

Word	Noun	Adjective	Verb	Adverb
delusional disorder	Yes	No	No	No
folie	Yes	No	No	No

As nouns, folie is a hypernym of delusional disorder; that is, folie is a word with a broader meaning than delusional disorder:

delusional disorder: any mental disorder in which delusions play a significant role
folie: (psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness

Other hypernyms of delusional disorder include disturbance, mental disorder, mental disturbance, psychological disorder.

delusional disorder (noun)	folie (noun)
any mental disorder in which delusions play a significant role	(psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness