keelboat

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keelboat

Wikipedia

From keel +‎ boat.

keelboat (plural keelboats)

1. (sailing) Any sailboat having a keel (as opposed to a centerboard or daggerboard).
   • 1870, Mark Twain, chapter 3, in Life on the Mississippi‎^[1]:

     By and by the steamboat intruded. Then for fifteen or twenty years, these men continued to run their keelboats down-stream, and the steamers did all of the upstream business, the keelboatmen selling their boats in New Orleans, and returning home as deck passengers in the steamers.