Where does “Mienl” come from?

Mienl (East Central German) comes from English Wilhelmine, from English Wilhelm, from German Wilhelm, from Old High German Willahelm, from Old High German helm, from Proto-West Germanic helm, from Proto-Germanic helmaz, from Proto-Germanic halmaz — to pierce, strike; to stick; prick; stab.

Ancestry of “Mienl”, step by step

StepLanguageWordMeaning
1EnglishWilhelmineOf or pertaining to the period of German history...
2EnglishWilhelm
3GermanWilhelmWilliam
4Old High GermanWillahelmWilliam
5Old High Germanhelmhelmet
6Proto-West Germanichelmhelmet
7Proto-Germanichelmazhelmet
8Proto-Germanichalmazhalm; stem; stalk; straw; hay
9Proto-Indo-Europeanḱolh₂mosstalk
10Proto-Indo-Europeanḱelh₂-to pierce, strike; to stick; prick; stab
Every word from Proto-Indo-European ḱelh₂-