Where does “rēn” come from?

rēn (Old English) comes from Proto-Germanic regną, from Proto-Indo-European Hreǵ- — to flow.

Ancestry of “rēn”, step by step

StepLanguageWordMeaning
1Proto-Germanicregnąrain
2Proto-Indo-EuropeanHreǵ-to flow
Every word from Proto-Indo-European Hreǵ- →Every word from Proto-Germanic regną →