Where does “cren-” come from?

cren- (English) comes from Ancient Greek κρήνη, from Proto-Indo-European kr̥s-neh₂, from Proto-Indo-European kres- — spring, surge, wave.

Ancestry of “cren-”, step by step

StepLanguageWordMeaning
1Ancient Greekκρήνηwell, spring, fountain; waters
2Proto-Indo-Europeankr̥s-neh₂—
3Proto-Indo-Europeankres-spring, surge, wave
Every word from Proto-Indo-European kres- →Every word from Proto-Indo-European kr̥s-neh₂ →Every word from Ancient Greek κρήνη →