3. To try tasting, as food or drink. [Obs.]

4. To subject, as an ore, alloy, or other metallic compound, to chemical or metallurgical examination, in order to determine the amount of a particular metal contained in it, or to ascertain its composition.

ASSAY
As*say", v. i.

Defn: To attempt, try, or endeavor. [Archaic. In this sense essay is
now commonly used.]
She thrice assayed to speak. Dryden.

ASSAYABLE
As*say"a*ble, a.

Defn: That may be assayed.

ASSAYER
As*say"er, n.

Defn: One who assays. Specifically: One who examines metallic ores or compounds, for the purpose of determining the amount of any particular metal in the same, especially of gold or silver.

ASSAYING
As*say"ing, n.

Defn: The act or process of testing, esp. of analyzing or examining metals and ores, to determine the proportion of pure metal.