Main Entry: roil

Pronunciation: \ˈrȯi(-ə)l, vt 2 is also ˈrī(-ə)l\

Function: verb

Etymology: origin unknown

Date: 1590

transitive verb 1 a : to make turbid by stirring up the sediment or dregs of b : to stir up : disturb, disorder
2 : rile 1intransitive verb : to move turbulently : be in a state of turbulence or agitation <conflicting emotions roiling inside her>