blacksmith

Historically a "smith" was a person who worked with metal. The type of metal became the prefix hence Goldsmith, Coppersmith, Silversmith, etc.. Blacksmith came from wrought iron which was dirty to work and known as Black Iron. Nowadays, this term is used in a much broader sense to refer to metal working professionals; generally limited to manufacturers of handmade goods (wrought iron crafts). Blacksmiths working with horses are commonly known as farriers. Blacksmiths working in large scale industry are generally referred to as metal workers or fabricators.