Trier

n. one who tries, one who experiments, tester

Trier (; Luxembourgish: Tréier; ) is a city in Germany on the banks of the Moselle River. It is the oldest city in Germany, founded in or before 16 BC. Trier is not the only city claiming to be Germany's oldest, but it is the only one that bases this assertion on having the longest history as a city, as opposed to a mere settlement or army camp.
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Noun
1. one (as a judge) who examines and settles a case
(hypernym) judge, justice, jurist, magistrate
(derivation) judge, adjudicate, try
(classification) law, jurisprudence
2. one who tries
(synonym) attempter, essayer
(hypernym) person, individual, someone, somebody, mortal, human, soul
(derivation) test, prove, try, try out, examine, essay

v. sort, select, sift

(n.)
That which tries or approves; a test.
  

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

(n.)
One who tries judicially.
  

(n.)
A person appointed according to law to try challenges of jurors; a trior.