Why do you think the word solar is derived from the root that means only?

The Word "solar" is derived from the Latin Word "solaris," which means "of the sun." The Latin root "sol" means "sun" or "only," which likely led to the association of the Word "solar" with the sun. This connection may have originated from the idea that the sun is the only source of light and energy in our solar system, hence the root meaning "only" being associated with it.