Where does “rao” come from?

rao (Old Dutch) comes from Proto-West Germanic hrau, from Proto-Germanic hrawaz, from Proto-Indo-European krewh₂- — blood outside the body.

Ancestry of “rao”, step by step

StepLanguageWordMeaning
1Proto-West Germanichrauraw
2Proto-Germanichrawazraw, uncooked
3Proto-Indo-Europeankrewh₂-blood outside the body

Words derived from “rao

Every word from Proto-Indo-European krewh₂-Every word from Proto-Germanic hrawazEvery word from Proto-West Germanic hrau