Where does “krumplibogarak” come from?

krumplibogarak (Hungarian) comes from Hungarian krumplibogár, from Hungarian krumpli, from German Grundbirne, from German Grund, from Middle High German grunt, from Old High German grunt, from Proto-West Germanic grundu, from Proto-Germanic grunduz — to rub; to stroke; to grind.

Ancestry of “krumplibogarak”, step by step

StepLanguageWordMeaning
1HungariankrumplibogárColorado beetle, Colorado potato beetle
2Hungariankrumplipotato
3GermanGrundbirnepotato
4GermanGrundground, land; bottom; reason; motive
5Middle High Germangrunt
6Old High Germangruntground
7Proto-West Germanicgrundu
8Proto-Germanicgrunduzground, foundation
9Proto-Indo-Europeangʰrem-to be angry; to sound, bellow, growl, roar, be...
10Proto-Indo-Europeangʰer-to rub; to stroke; to grind
Every word from Proto-Indo-European gʰer-Every word from Proto-Indo-European gʰrem-Every word from Proto-Germanic grunduz