precede vs precession

precede is not a noun while precession is a noun.

Word	Noun	Adjective	Verb	Adverb
precede	No	No	Yes	No
precession	Yes	No	No	No

precede (noun)	precession (noun)
	the act of preceding in time or order or rank (as in a ceremony)
	the motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone

precede (verb)	precession (verb)
furnish with a preface or introduction
move ahead (of others) in time or space
be the predecessor of
be earlier in time; go back further
come before