late 14c., standard system of weights for gems and precious metals, from Troyes, city in France (ancient Tricasses), former site of a fair at which this weight is said to have been used. Many medieval towns had their own standard weights. The pound troy contains 5,760 grains and is divided into 12 ounces.
The ancient city inhabited by the Trojans; the site of the legendary Trojan War of classical mythology. The ruins of Troy were found in the nineteenth century in the western part of what is now Turkey.