The word "planet" comes from the ancient Greek word πλανήτης (planḗtēs), which means "wanderer." This term was used by the Greeks to describe the "wandering stars" — celestial bodies that moved across the sky relative to the fixed stars. The origin traces further back to the Greek verb πλανάω (planáō), meaning "to wander about" or "to stray." The term was adopted into Latin as "planeta," then Old French as "planete," and eventually into English as "planet." The word reflects the apparent motion of these celestial bodies as they wander in the sky rather than remaining fixed like the stars.
