Aquaphobia: An abnormal and persistent fear of water. Sufferers from aquaphobia experience anxiety even though they realize the water in an ocean, a river, a lake, a creek or even a bathtub may pose no imminent threat. They generally avoid such activities as boating and swimming. Around the house, they may fear the water in a shower or tub and even desist from bathing therein.
The word "aquaphobia" is a hybrid term with roots in two ancient tongues. It is from the Latin "aqua" (water) and the Greek "phobos" (fear).