Where does “styrtregn” come from?

styrtregn (Norwegian Bokmål) comes from Norwegian Bokmål styrt, from Norwegian Bokmål styrte, from Middle Low German störten, from Old Saxon sturtian, from Proto-West Germanic sturtijan, from Proto-Indo-European (s)ter- — strong, firm, stiff, rigid; rigid, stiff; to...

styrtregn (Norwegian Bokmål): torrential rain

Definitions

  1. torrential rain

Ancestry of “styrtregn”, step by step

styrtregn traces back through two separate lines of ancestry.

via Norwegian Bokmål styrt

StepLanguageWordMeaning
1Norwegian Bokmålstyrta shower, shower bath; an inundation; a crash
2Norwegian Bokmålstyrteto rush, dash; to fall down, topple over, plunge;...
3Middle Low Germanstörten
4Old Saxonsturtian
5Proto-West Germanicsturtijanto fall down, tumble
6Proto-Indo-European(s)ter-strong, firm, stiff, rigid; rigid, stiff; to...

via Norwegian Bokmål regn

StepLanguageWordMeaning
1Norwegian Bokmålregnrain; imperative of regne
2Old Norseregnrain
3Proto-Germanicregnąrain
4Proto-Indo-EuropeanHreǵ-to flow
Every word from Proto-Indo-European (s)ter-Every word from Proto-West Germanic sturtijanEvery word from Old Saxon sturtian