Where does “Geisel” come from?

Geisel (English) comes from German geisel, from Middle High German gīsel, from Old High German gīsal, from Proto-West Germanic gīsl, from Proto-Germanic gīslaz, from Proto-Germanic berhtaz, from Proto-Germanic hrabnaz, from Proto-Indo-European ḱorh₂- — army.

Ancestry of “Geisel”, step by step

StepLanguageWordMeaning
1Germangeiselhostage
2Middle High Germangīsel—
3Old High Germangīsalhostage, pledge
4Proto-West Germanicgīslhostage
5Proto-Germanicgīslazhostage
6Proto-Germanicberhtazbright, shining
7Proto-Germanichrabnazraven
8Proto-Indo-Europeanḱorh₂-—
9Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
10Proto-Indo-Europeankr̥-to turn, to bend
11Proto-Indo-Europeanker-army
Every word from Proto-Indo-European ker- →Every word from Proto-Indo-European kr̥- →Every word from Proto-Indo-European ḱer- →