Where does “Gibsonia” come from?

Gibsonia (English) comes from English Gibson, from English Gibb, from English gilbert, from Old French Gilbert, from Proto-Germanic gīslaz, from Proto-Germanic berhtaz, from Proto-Germanic hrabnaz, from Proto-Indo-European ḱorh₂- — army.

Ancestry of “Gibsonia”, step by step

StepLanguageWordMeaning
1EnglishGibsonA cocktail made with gin and vermouth, garnished...
2EnglishGibb
3EnglishgilbertThe CGS unit of magnetomotive force equal to...
4Old FrenchGilbert
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-