Where does “grunnskule” come from?

grunnskule (Norwegian Nynorsk) comes from Norwegian Nynorsk skule, from Old Norse skóli, from Middle Low German schôle, from Proto-Germanic skōla, from Latin schola, from Ancient Greek σχολή, from Proto-Hellenic skʰolā́, from Proto-Indo-European sǵʰ-h₃-léh₂ — to hold; to overpower.

Ancestry of “grunnskule”, step by step

grunnskule traces back through two separate lines of ancestry.

via Norwegian Nynorsk skule

StepLanguageWordMeaning
1Norwegian Nynorskskuleschool; to scowl; stare at someone or something...
2Old Norseskólischool
3Middle Low Germanschôle
4Proto-Germanicskōlaschool
5LatinscholaLeisure time given to learning; schooltime,...
6Ancient Greekσχολήleisure, free time; rest; that in which leisure...
7Proto-Hellenicskʰolā́
8Proto-Indo-Europeansǵʰ-h₃-léh₂
9Proto-Indo-Europeanseǵʰ-to hold; to overpower

via Norwegian Nynorsk grunn

StepLanguageWordMeaning
1Norwegian Nynorskgrunnground, foundation; reason; shallow
2Old Norsegrunnrbottom
3Proto-Germanicgrunduzground, foundation
4Proto-Indo-Europeangʰrem-to be angry; to sound, bellow, growl, roar, be...
5Proto-Indo-Europeangʰer-to rub; to stroke; to grind
Every word from Proto-Indo-European seǵʰ-Every word from Proto-Indo-European sǵʰ-h₃-léh₂Every word from Proto-Hellenic skʰolā́