roil

To roil is to agitate or make angry.

(verb)

An example of roil is for someone to upset protestors with an angry speech.
An example of roil is to make river water cloudy as you stir up the sediment from the bank.

See roil in Webster's New World College Dictionary

transitive verb

Origin: Fr rouiller < OFr rouil, roille, rust, mud, ult. < L robigo, rust, akin to ruber, red

intransitive verb

to be agitated

See roil in American Heritage Dictionary 4

verb roiled, roil·ing, roils

verb, transitive

To make (a liquid) muddy or cloudy by stirring up sediment.
To displease or disturb; vex: My roommate's off-putting habits began to roil me.

verb, intransitive

To be in a state of turbulence or agitation.

Origin:

Origin: Origin unknown

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