Roil Definition

roil

roiled, roiling, roils

verb

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

Synonyms:

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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