1. hydro-, hydra-, hydr-, hyd- Greek- Water

2. hydrangea hydrangea Any of various shrubs of the genus Hydrangea, having opposite leaves and large, flat-topped or rounded clusters of white, pink, or blue flowers. hydr-, stem of hydor "water“ + angeion "vessel, capsule;" so called from the shrub's cup-shaped seed pods.

3. hydrant An upright pipe with a spout, nozzle, or other outlet, usually in the street, for drawing water from a main or service pipe; especially, for fighting fires. hydr-, stem of hydor "water" + -ant

4. dehydrate de-, (not) + hydr-, stem of hydor "water“ + -ate (to do) To lose water or bodily fluids.

5. hydroelectricity electricity generated by hydropower Hydro= water + Electricity

6. cacohydrophobia A fear of drinking or of being contaminated in some way with bad water. Caco=bad + hydro=water+phobia=fear

7. carbohydrate An organic compound present in the cells of all living organisms and a major organic nutrient for human beings; it consists of carbon, hydrogen, and oxygen, and makes up sugar, starch, and cellulose. carbo- "carbon" + hydrate, denoting compound produced when certain substances combine with water + hydor "water

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