Hydro (prefix)

Denoting water or hydrogen.

Origin:

Originated in the early 19th century, from greek 'hudro-' (water).

Examples:

1. Hydroelectric power is generated by using the power of moving water.
2. Hydroponics is a method of growing plants without soil, using nutrient-rich water instead.
3. Hydrosphere is the term used to describe the combined mass of water found on, under, and over the surface of a planet.
4. Hydrotherapy involves using water for pain relief and to promote physical well-being.
5. Hydrogen is the lightest and most abundant element in the universe.