Etymology is the study of the origin and history of words. It explores how words have evolved over time, including their roots, changes in form, and shifts in meaning. By examining the linguistic ancestry of a word, etymologists can trace its journey through different languages and cultures. This field often reveals connections between languages, such as Latin, Greek, and Old English. For example, the English word "telephone" comes from the Greek roots "tele," meaning distant, and "phone," meaning voice. Understanding etymology enhances our appreciation of language and its development throughout history.