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john boat(jŏn′bōt′) or john·boat (jŏn′bōt′)
Variants of jon boat.
jon boator jon·boat also john boat or john·boat (jŏn′bōt′)
A small flatbottom boat with square ends, used on shallow waterways.
[Probably alteration (influenced by the name Jon) of joe boat, variant spelling of jow boat, perhaps from Scots jow, to move with a rocking motion, from Middle English jollen, to stagger, knock, variant of chollen, to strike, perhaps from chavel, chaule, cheek; see jowl1.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a small flat-bottomed boat
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
or john′ boat`,
a light, square-ended, flat-bottomed skiff.
[1900–05, Amer.; probably John (the given name) + boat]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.