Roil1, v. t.
(38), v. t. [imp. & p. p. ROILED; p. pr. & vb. n. ROILING.] [Either abbreviated from broil, Fr. brouiller, to mingle confusedly, to embroil, to perplex, confuse; or from O. Eng. roile, reile, to roll. See BROIL.] [Written also rile.]
Sense 1. To render turbid by stirring up the dregs or sediment of; as, to roil wine, cider, or other liquor in casks or bottles.
Sense 2. To excite to some degree of anger; to disturb; to rouse the passion of resentment in. [Prov. Eng. and local U. S.]
Sense 3. To perplex. [Prov. Eng.]