gravity vs gravitate

gravity is a noun but gravitate is not a noun.

Word	Noun	Adjective	Verb	Adverb
gravity	Yes	No	No	No
gravitate	No	No	Yes	No

gravity (noun)	gravitate (noun)
a manner that is serious and solemn
a solemn and dignified feeling
(physics) the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface

gravity (verb)	gravitate (verb)
	move due to the pull of gravitation
	be attracted to
	move toward