Where does “ruo” come from?

ruo (Middle High German) comes from Old High German ruowa, from Proto-West Germanic rōu, from Proto-Germanic *rōō, from Proto-Indo-European h₁reh₁- — to row; to separate; loose, sparse, rare.

Ancestry of “ruo”, step by step

StepLanguageWordMeaning
1Old High Germanruowapeace, quiet, rest
2Proto-West Germanicrōucalm, quiet; rest, repose
3Proto-Germanic*rōōcalm, quiet
4Proto-Indo-Europeanh₁reh₁-to row; to separate; loose, sparse, rare

Words derived from “ruo

Every word from Proto-Indo-European h₁reh₁-Every word from Proto-Germanic *rōōEvery word from Proto-West Germanic rōu