Definition of linkage

The word "linkage" originates from the Middle English word "linken," meaning "to join" or "to connect." This term itself derives from the Old Norse word "hlinka," which has a similar meaning. The concept of linking or joining is central to the word's evolution. Over time, "linkage" evolved to represent the act of connecting things together, whether physically or conceptually. Today, "linkage" is used in various contexts, including genetics, engineering, and social science, to describe connections and relationships between different elements.