Where does “groundli” come from?

groundli (Middle English) comes 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 “groundli”, step by step

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

Words derived from “groundli

Every word from Proto-Indo-European gʰer-Every word from Proto-Indo-European gʰrem-Every word from Proto-Germanic grunduz