From term|numb||deadened + term|skull.
pejorative dunce, a mentally dull or stupid person.
#: No son of mine will be held for a numskull, said the proud father, so I'll whip your bare arse numb till you stop shaming our name with dumb-ass grades
pejorative A label for a person who refuses to learn or grow, mentally.
#: That numskull will never learn how to compose a letter.
- A traditional name for a fool who serves as the butt of jokes about stupidity.
Numskull is often capitalized as the name of the traditional fictional butt of jokes.
R:Webster NCD 1967