Ancient Greek word root · Water & Fire

hydr-: water

hydr- is an Ancient Greek root meaning “water”. Learn its variants and explore 5 connected words.

Meaning and variants

Meaning: water

Root forms: hydr-, hydro-

Source word: ὕδωρ — water

Word family and examples

• hydrogen

  a colorless, odorless gas that is the lightest chemical element

• dehydrate

  to remove water from; to lose a large amount of water from the body

• hydrazine

  A corrosive, fuming liquid, NH₂-NH₂, used as a rocket fuel.

• hydrography

  The scientific measurement and description of the physical features and conditions of navigable waters and the shoreline.

• hydrophone

  a transducer that converts underwater sound waves into electrical signals, rather like a microphone

Root connections help with vocabulary recall. They are not a complete etymological history, and a spelling match alone does not prove a relationship.

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