confessor vs confess

confessor is a noun but confess is not a noun.

Word	Noun	Adjective	Verb	Adverb
confessor	Yes	No	No	No
confess	No	No	Yes	No

confessor (noun)	confess (noun)
a priest who hears confession and gives absolution
someone who confesses (discloses information damaging to themselves)

confessor (verb)	confess (verb)
	confess to a punishable or reprehensible deed, usually under pressure
	admit (to a wrongdoing)
	confess to God in the presence of a priest, as in the Catholic faith