Definition of the word cycle

The word "cycle" originates from the Greek word "kýklos," meaning "ring" or "circle." In English, the word "cycle" was first used in the 15th century to describe a series of events or processes that repeat in a circular motion. The concept of a cycle was further developed in the 17th century by scientists such as Sir Isaac Newton, who used the term to describe the repetitive orbits of planets around the sun. In the 19th century, the term "cycle" was applied to various natural phenomena, such as the cycles of day and night, the tides, and the seasons. Today, the word "cycle" is used in a wide range of contexts, including physics, biology, psychology, and even transportation, referring to a continuous movement or series of events that repeat over time.