humour vs humourist

humour and humourist both are nouns.

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

humour (noun)	humourist (noun)
the quality of being funny	someone who acts, speaks or writes in an amusing way
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

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