Where does “numbnuts” come from?

numbnuts (English) comes from English nuts, from English nut, from Middle English nute, from Old English hnutu, from Proto-West Germanic hnut, from Proto-Germanic hnuts, from Proto-Indo-European knew-, from Proto-Indo-European ken- — to arise, begin.

numbnuts (English): A slow-witted, unresponsive, or inept person

Definitions

  1. A slow-witted, unresponsive, or inept person

Ancestry of “numbnuts”, step by step

numbnuts traces back through two separate lines of ancestry.

via English nuts

StepLanguageWordMeaning
1Englishnutsplural of nut; Testicles; An unbeatable hand; the...
2EnglishnutA hard-shelled seed; A piece of metal, usually...
3Middle Englishnute
4Old Englishhnutunut
5Proto-West Germanichnutnut
6Proto-Germanichnutsnut
7Proto-Indo-Europeanknew-to scrape; scratch; rub; to scratch; scrape; rub
8Proto-Indo-Europeanken-to arise, begin

via English numb

StepLanguageWordMeaning
1EnglishnumbPhysically unable to feel, not having the power...
2EnglishnimTo take or seize; To filch, steal; To walk with...
3Middle Englishnimento take
4Old Englishnimanto take, seize
5Proto-West Germanicnemanto take
6Proto-Germanicnemanąto take
7Proto-Indo-Europeannem-to distribute; to give, to take
Every word from Proto-Indo-European ken-