Where does “Eichel” come from?

Eichel (English) comes from German Eichel, from Middle High German eichel, from Old High German eihhila, from Proto-West Germanic *aikilā, from Proto-West Germanic aik, from Proto-West Germanic *-ilā, from Proto-Germanic aiks, from Proto-Indo-European h₂eyǵ- — goat; oak.

Ancestry of “Eichel”, step by step

StepLanguageWordMeaning
1GermanEichelacorn; acorns; glans
2Middle High Germaneichel
3Old High Germaneihhila
4Proto-West Germanic*aikilāacorn
5Proto-West Germanicaikoak
6Proto-West Germanic*-ilāForms feminine agent nouns, especially of plants and animals
7Proto-Germanicaiksoak tree; oak
8Proto-Indo-Europeanh₂eyǵ-goat; oak
Every word from Proto-Indo-European h₂eyǵ-Every word from Proto-Germanic aiksEvery word from Proto-West Germanic *-ilā