choler vs ill humor

choler and ill humor both are nouns.

Word	Noun	Adjective	Verb	Adverb
choler	Yes	No	No	No
ill humor	Yes	No	No	No

As nouns, ill humor is a hypernym of choler; that is, ill humor is a word with a broader meaning than choler:

Other hypernyms of choler include distemper, ill humour.

choler (noun)	ill humor (noun)
a humor that was once believed to be secreted by the liver and to cause irritability and anger	an angry and disagreeable mood
a strong emotion; a feeling that is oriented toward some real or supposed grievance
an irritable petulant feeling