Where does “roil” come from?

roil (English) comes from Middle French rouiller, from Old French rouil, from Vulgar Latin robicula, from Latin rōbīgō, from Latin rōbus, from Proto-Italic rouβos, from Proto-Indo-European h₁rewdʰ- — red.

roil (English): To render turbid by stirring up the dregs or...

Definitions

  1. To render turbid by stirring up the dregs or...

Ancestry of “roil”, step by step

StepLanguageWordMeaning
1Middle Frenchrouillerto rust
2Old Frenchrouilrust
3Vulgar Latinrobicula—
4Latinrōbīgōrust
5Latinrōbusred
6Proto-Italicrouβos—
7Proto-Indo-Europeanh₁rewdʰ-red

Words derived from “roil”

Every word from Proto-Indo-European h₁rewdʰ- →Every word from Proto-Italic rouβos →Every word from Latin rōbus →