Where does “tourbe” come from?

tourbe (Old French) comes from Proto-West Germanic turb, from Proto-Germanic turbz, from Proto-Indo-European dorbh- — tuft, grass.

Ancestry of “tourbe”, step by step

StepLanguageWordMeaning
1Proto-West Germanicturbturf, peat
2Proto-Germanicturbzturf, peat
3Proto-Indo-Europeandorbh-tuft, grass

Words derived from “tourbe

Every word from Proto-Indo-European dorbh-Every word from Proto-Germanic turbzEvery word from Proto-West Germanic turb