Aqua 1
Aqua 2
Hydros 1
Hydros 2
100
Containing water or similar to water; watery

Aqueous

100

Lives in or found near the water.

Aquatic

100

Extreme Thirst

Hydrodipsia
100

Mythological serpent with many heads; when one is cut off, two more appear.

Hydra

200

A scuba diver who lives for a long while in an underwater shelter used as a base for research

Aquanaut

200

An underground layer of rock or sand that can absorb and hold water.

Aquifer

200

A person trained to work in deep-sea vessels (other than a submarine) for research and rescue purposes.

Hydronaut

200

Operated by fluid or water pressure

Hydraulic

300

An etching that looks like a watercolor.

Aquatint

300

A container filled with water that holds fish, plants and other marine creatures

Aquarium

300

To add water or moisture to something.

Hydrate

300

flowering bush with showy clusters of white, pink, blue flowers; has a cup shaped seed pod.

Hydrangea

400

A strong alcoholic liquor, such as brandy

aqua vitae

400

An elevated conduit for water, especially used in ancient Rome.

Aqueduct

400

Fear of water.

Hydrophobia

400

A pipe connected to a water source with a valve and spout; used to put out fires.

Hydrant

500

A portable breathing apparatus for divers; a SCUBA tank

Aqualung

500

A pale greenish-blue color

Aquamarine

500

Dry, without water.

Anhydrous

500

Simplest and lightest element; and essential part of water.

Hydrogen