1. [syn: churning, roiling, roiled, roily, turbulent]
The Collaborative International Dictionary of English v.0.48:
Roil \Roil\, v. t. [imp. & p. p. Roiled; p. pr. & vb. n.
Roiling.] [Cf. OE. roilen to wander; possibly fr. OF.
roeler to roll, equiv. to F. rouler. See Roll, v., and cf.
1. To render turbid by stirring up the dregs or sediment of;
as, to roil wine, cider, etc., in casks or bottles; to
roil a spring.
2. To disturb, as the temper; to ruffle the temper of; to
rouse the passion of resentment in; to perplex.
That his friends should believe it, was what roiled
him [Judge Jeffreys] exceedingly. --R. North.
Note: Provincial in England and colloquial in the United
States. A commoner, but less approved, form is rile.