Noah Webster
Roil
ROIL, verb transitive
1. To render turbid by stirring up the dregs or sediment; as, to roil wine, cider or other liquor in casks or bottles.
2. To excite some degree of anger; to disturb the passion of resentment. [These senses are in common use in New England, and locally in England.]
3. To perplex. [Local in England.]