Definition of the word emery

The word "emery" originates from the Greek word "égmas," which means "glassy stone." This word describes the appearance of the mineral corundum, which is the form of aluminum oxide that emery is made from. In the Ancient Roman period, emery was imported from Greece and was used to sharpen iron tools due to its hardness and ability to polish metallic surfaces. The Latin word for emery was "agerum," which evolved into "ageria" in Medieval Latin. The Old French word "guirie" was used for a similar substance in the Middle Ages, and it is thought to have been derived from the Latin word "ageria." Both "emery" and "guirie" were used interchangeably in English for centuries. The word "emery" became more common over time, and it entered the English language during the Middle English period (1100-1500). The use of emery as an abrasive evolved during the Industrial Revolution. In the 19th century, emery was mined in Cornwall, England, and by the 20th century, emery had become a widespread industrial material due to its high hardness and ability to be carved into various shapes. Today, Brazilian emery is the most commonly used variety of emery due to its large deposit in the country. In summary, the word "emery" originated from the Greek word "égmas" and was used to describe the ancient Greek corundum. The Old French word "guirie" was used for a similar substance, and both words were interchangeable in English. The use of emery as an abrasive became widespread during the Industrial Revolution, and Brazilian emery is now the most common variety used in various industrial applications today.