cupper
Cupper refers to a person who works with copper. Historically, this term was most commonly associated with coppersmiths, artisans who craft objects from copper. These objects could range from functional items like pots, pans, and kettles to decorative pieces and architectural elements. Coppersmithing is a skilled trade that involves heating, hammering, and shaping copper to create desired forms. The work often requires significant physical strength and precision.
In some contexts, cupper can also refer to individuals involved in the mining or processing of copper
More recently, the term "cupper" has gained a specific meaning within the sport of competitive dog grooming.