Hey, Larry, I've "always heard" that nincompoop was a corruption of non compos mentis, although that doesn't explain the poop part. Although we can guess where that came from. --Paul V (Howdy!)
Howdy, Paul. Good to see your phosphors, at least. For that theory, I can only quote from the Online Etymology Dictionary (http://www.etymonline.com/index.php?search=nincompoop):
1676, nicompoop. Despite similarity [noted by Johnson] to L. legal phrase non compos mentis "insane, mentally incompetent" (1607), the connection is denied by etymologists because the earliest forms lack the second -n-. Weekley thinks first element may be a proper name, and cites Nicodemus, which he says was used in Fr. for "a fool," or Nicholas.
no subject
Date: 2007-05-04 03:25 pm (UTC)no subject
Date: 2007-05-04 08:52 pm (UTC)---L.
unknown?
Date: 2007-05-04 03:38 pm (UTC)Re: unknown?
Date: 2007-05-04 08:51 pm (UTC)---L.
no subject
Date: 2007-05-06 05:46 pm (UTC)Shame there's a lack of concrete history to it, though.
no subject
Date: 2007-05-07 02:18 pm (UTC)---L.