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aquanaut

[ak-wuh-nawt, -not, ah-kwuh-] /ˈæk wəˌnɔt, -ˌnɒt, ˈɑ kwə-/
noun
1.
an undersea explorer, especially one who skin-dives from or lives for an extended period of time in a submerged dwelling.
2.
a skin-diver.
Origin
1880-1885
1880-85; aqua- + -naut, on the model of aeronaut, astronaut, etc.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for aquanaut

aquanaut

/ˈækwənɔːt/
noun
1.
a person who lives and works underwater
2.
a person who swims or dives underwater
Word Origin
C20: from aqua + -naut, as in astronaut
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for aquanaut
aquanaut
1881, from aqua- + ending from Gk. nautes "sailor" (see naval)
Online Etymology Dictionary, © 2010 Douglas Harper
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17
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