Where does “Nußbäumchen” come from?

Nußbäumchen (German) comes from German Nußbaum, from German Nuss, from Old High German nuz, from Proto-West Germanic hnut, from Proto-Germanic hnuts, from Proto-Indo-European knew-, from Proto-Indo-European ken- — to arise, begin.

Ancestry of “Nußbäumchen”, step by step

StepLanguageWordMeaning
1GermanNußbaumwalnut (tree)
2GermanNussnut
3Old High Germannuznut; use
4Proto-West Germanichnutnut
5Proto-Germanichnutsnut
6Proto-Indo-Europeanknew-to scrape; scratch; rub; to scratch; scrape; rub
7Proto-Indo-Europeanken-to arise, begin
Every word from Proto-Indo-European ken- →Every word from Proto-Indo-European knew- →Every word from Proto-Germanic hnuts →