precede vs precedency

precede is not a noun while precedency is a noun.

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

precede (noun)	precedency (noun)
	the act of preceding in time or order or rank (as in a ceremony)
	preceding in time
	status established in order of importance or urgency

precede (verb)	precedency (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