- a fool or simpleton.
Origin of nincompoop
Examples from the Web for nincompoopery
No wonder the few strong men do about as they please with such a race of nincompoopery.The Deluge
David Graham Phillips
- a stupid person; fool; idiot
Word Origin and History for nincompoopery
1670s, nicompoop. Despite similarity [noted by Johnson] to Latin legal phrase non compos mentis "insane, mentally incompetent" (c.1600), 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 French for "a fool," or Nicholas. Klein says probably an invented word.