A fun look at "brauchen" (to need), its prefix versions and how to use "brauchen" with verbs. Also: some really cool relations to English and other languages.
brauchen, verbrauchen, der Brauch, der Bedarf, Gebrauchsanweisung
The core idea of this root was:
enjoying, eating fruits
It’s the origin of the words around fruit (like fruition or fructose) and also of the branch around function and fungible which evolved from the idea of using.
The German brauchen slowly shifted from using to needing.