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. Rile. ] 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. [ 1913 Webster ]
2. To disturb, as the temper; to ruffle the temper of; to rouse the passion of resentment in; to perplex. [ 1913 Webster ]
That his friends should believe it, was what roiled him [ Judge Jeffreys ] exceedingly. R. North. [ 1913 Webster ]
☞ Provincial in England and colloquial in the United States. A commoner, but less approved, form is rile. [ 1913 Webster ]