Definition of the word leaded

The origin of the word "leaded" can be traced back to the process of adding lead to materials to make them more workable and malleable. The lead-based compound, known as litharge or lead carbonate, was commonly used in this process as a flux or lubricant during metallurgy and glassmaking. In metalworking, the term "leaded" appears in relation to solders, used for joining metals together. Litharge added to the solders reduced the melting point of the alloy, allowing it to flow smoothly and fill the joints without cracking. The result was a smoother and more attractive finish. This practice became widespread in the Middle Ages when lead-based solders became the norm in metalworking. The use of lead in glassmaking, where it was called "potash lead," created a similar effect of making the glass more workable and less liable to crack during the shaping process. The term "leaded glass" is still used today to describe a piece of glass that contains lead oxide in its composition, making it more durable and lending it an attractive, soft luster. In summary, the word "leaded," as related to glass and solders, originally referred to the addition of lead compounds, which made these materials more workable and enjoyable for artisans.