assayer vs assay

assayer and assay both are nouns.

Word	Noun	Adjective	Verb	Adverb
assayer	Yes	No	No	No
assay	Yes	No	Yes	No

assayer (noun)	assay (noun)
an analyst who assays (performs chemical tests on) metals	a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components; frequently used to test for the presence or concentration of infectious agents or antibodies etc.
	an appraisal of the state of affairs
	a written report of the results of an analysis of the composition of some substance
	a substance that is undergoing an analysis of its components

assayer (verb)	assay (verb)
	analyze (chemical substances)
	make an effort or attempt