harmony vs harmonise

harmony is a noun but harmonise is not a noun.

Word	Noun	Adjective	Verb	Adverb
harmony	Yes	No	No	No
harmonise	No	No	Yes	No

harmony (noun)	harmonise (noun)
an agreeable sound property
compatibility in opinion and action
agreement of opinions
the structure of music with respect to the composition and progression of chords
a harmonious state of things in general and of their properties (as of colors and sounds); congruity of parts with one another and with the whole

harmony (verb)	harmonise (verb)
	bring into consonance, harmony, or accord while making music or singing
	bring into consonance or accord
	bring (several things) into consonance or relate harmoniously
	sing or play in harmony
	write a harmony for
	go together