assessor vs assess

assessor is a noun but assess is not a noun.

Word	Noun	Adjective	Verb	Adverb
assessor	Yes	No	No	No
assess	No	No	Yes	No

assessor (noun)	assess (noun)
an official who evaluates property for the purpose of taxing it

assessor (verb)	assess (verb)
	evaluate or estimate the nature, quality, ability, extent, or significance of
	estimate the value of (property) for taxation
	set or determine the amount of (a payment such as a fine)
	charge (a person or a property) with a payment, such as a tax or a fine