Definition of solar

The word "solar" originates from the Latin word "sol," which means "sun." In ancient Roman mythology, the sun was personified as a god named Sol, and the Latin word "solaris" was used to describe things related to the sun. The term "solar" was later adopted into Middle English from Old French, where it was spelled "solare," and originally referred to something that belonged to or was connected with the sun. Over time, the meaning of "solar" expanded to describe anything related to the sun, such as solar energy, solar radiation, and even solar systems. Today, the term "solar" is widely used in various fields, including astronomy, physics, and engineering, to describe phenomena and technologies related to the sun.