Roil Definition

roiled, roiling, roils
roiled, roiling, roils
To make (a liquid) cloudy, muddy, or unsettled by stirring up the sediment.
Webster's New World
To stir up; agitate.
Webster's New World
To cause to be in a state of agitation or disorder.
Wars that roiled the continent for decades.
American Heritage
To be agitated.
Webster's New World
To make angry or irritable; rile.
Webster's New World

Origin of Roil

  • Possibly from French Middle French rouiller (“to rust, make muddy"), from Old French rouil (“mud, rust"), from Vulgar Latin *robicula, from Latin robigo (“rust, blight")

    From Wiktionary

  • Origin unknown

    From American Heritage Dictionary of the English Language, 5th Edition

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