Where does “alle wîle” come from?

alle wîle (Middle High German) comes from Old High German alla wīla, from Proto-West Germanic all, from Proto-Germanic allaz, from Proto-Indo-European h₂él- — to grow, nourish.

Ancestry of “alle wîle”, step by step

StepLanguageWordMeaning
1Old High Germanalla wīla—
2Proto-West Germanicallall
3Proto-Germanicallazall
4Proto-Indo-Europeanh₂él-to grow, nourish
Every word from Proto-Indo-European h₂él- →Every word from Proto-Germanic allaz →Every word from Proto-West Germanic all →