Assay

Webster's Practical Dictionary- A Practical Dictionary of the Englih Language · 1884 · p. 36

as-sa"\ n. (Chem.) Determination of the titv of any metal, esp. gold or silver, in an ore loy: the substance to be a ayed: a_trial of weights and measures. — r. t. [a ayed (-sad'), a aying.] To subject to chemical examination, etc. — v. attempt, trv, or endeavor.