"One direct ancestor was a doughty pioneer bearing the stirring name of Nimrod Hutt and is said to have been a mighty slayer of panthers. He lived in Chillicothe, Ohio, as far back as 1812. --"Dewey: An American of This Century" by Stanley Walker.
Yes... I had to look it up! Webster's says 'doughty' means marked by fearless resolution; valiant.