Directly related to the sun:
* Solar: Relating to the sun (e.g., solar energy, solar system)
* Solarium: A room designed to be exposed to sunlight (often used for sunbathing)
* Solstice: The two times of the year when the sun is at its greatest distance from the celestial equator (summer solstice and winter solstice)
* Sol: Sometimes used as a synonym for the sun (e.g., "The sol rose in the east").
Other words related to the sun:
* Insolation: The amount of solar radiation received by a surface
* Solarize: To expose a material to the sun's rays (e.g., solarizing a photographic print)
* Helios: A Greek word for sun, often used in scientific names (e.g., the sun god Helios)
It's important to note:
* The spelling of the root may change slightly in different words (e.g., "sol" vs. "sol-").
* Some words may have a different origin despite having a similar spelling (e.g., "sole" meaning the bottom of a foot).