Where does “grawa” come from?

grawa (Gaulish) comes from Proto-Celtic grāwā, from Proto-Indo-European gʰroh₁weh₂, from Proto-Indo-European gʰreh₁w- — to grind.

Ancestry of “grawa”, step by step

StepLanguageWordMeaning
1Proto-Celticgrāwāgravel, pebbles
2Proto-Indo-Europeangʰroh₁weh₂—
3Proto-Indo-Europeangʰreh₁w-to grind

Words derived from “grawa”

Every word from Proto-Indo-European gʰreh₁w- →Every word from Proto-Indo-European gʰroh₁weh₂ →Every word from Proto-Celtic grāwā →