The word "zenith" refers to the highest point or peak of something, often in a context such as achievements or positions in the sky. For example, in astronomy, the zenith is the point in the sky directly above an observer. In a more figurative sense, it can represent the pinnacle of success or the most intense point of a situation.
The word "zenith" originates from the Middle English term "cenith," which came from the Arabic word "samt" meaning "path" or "direction." Over time, it evolved through Old French before entering the English language.