trier

One who tries; one who makes experiments or examines anything by a test or standard.

[…] I had once brought me a certain Earth, by a Gentleman that digg'd it up in this, or ſome neighboring Country, vvhich, though it ſeem'd but a Mineral Earth, did really afford, to a very expert tryer of Metals of my acquaintance, a not deſpicable proportion of Gold.

An instrument used for sampling something.

The judge should grasp the butter trier firmly in hand and insert the sampling device as near as possible to the center of the butter sample.

One who tries judicially.

A person appointed by law to try challenges of jurors; a trior.

That which tries or approves; a test.

Nay, mother, / Where is your ancient courage? you were us'd / To say, extremity was the trier of spirits

A city in Rhineland-Palatinate, Germany, on the banks of the Moselle river.

A habitational surname from German.