humourist vs humour

humourist and humour both are nouns.

Word	Noun	Adjective	Verb	Adverb
humourist	Yes	No	No	No
humour	Yes	No	Yes	No

humourist (noun)	humour (noun)
someone who acts, speaks or writes in an amusing way	the quality of being funny
	the trait of appreciating (and being able to express) the humorous
	the liquid parts of the body
	(Middle Ages) one of the four fluids in the body whose balance was believed to determine your emotional and physical state
	a message whose ingenuity or verbal skill or incongruity has the power to evoke laughter
	a characteristic (habitual or relatively temporary) state of feeling

humourist (verb)	humour (verb)
	put into a good mood