Where does “groundpig” come from?

groundpig (English) comes from English ground, from Middle English ground, from Old English grund, from Proto-Germanic grunduz, from Proto-Indo-European gʰrem-, from Proto-Indo-European gʰer- — to rub; to stroke; to grind.

Ancestry of “groundpig”, step by step

groundpig traces back through two separate lines of ancestry.

via English ground

StepLanguageWordMeaning
1EnglishgroundThe surface of the Earth, as opposed to the sky...
2Middle Englishgroundground; Earth
3Old Englishgrundground; bottom, foundation; abyss, depths
4Proto-Germanicgrunduzground, foundation
5Proto-Indo-Europeangʰrem-to be angry; to sound, bellow, growl, roar, be...
6Proto-Indo-Europeangʰer-to rub; to stroke; to grind

via English pig

StepLanguageWordMeaning
1EnglishpigAny of several intelligent mammalian species of...
2Middle EnglishpiggeA piglet or young pig; A pig irrespective of age;...
3Old Englishpicgaa young pig; piglet
4Proto-West Germanicpiggōpig
Every word from Proto-Indo-European gʰer-Every word from Proto-Indo-European gʰrem-Every word from Proto-Germanic grunduz
groundpig — Etymology, Origin & Word History | Etymology Explorer