analyst vs assayer

analyst and assayer both are nouns.

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

As nouns, assayer is a hyponym of analyst; that is, assayer is a word with a more specific, narrower meaning than analyst:

Other hyponyms of analyst include intelligence analyst, systems analyst.

analyst (noun)	assayer (noun)
someone who is skilled at analyzing data	an analyst who assays (performs chemical tests on) metals
a licensed practitioner of psychoanalysis
an expert who studies financial data (on credit or securities or sales or financial patterns etc.) and recommends appropriate business actions