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.

make turbid by stirring up the sediments of

To romp.

To disturb, as the temper; to ruffle the temper of; to rouse the passion of resentment in; to perplex.

To wander; to roam.

be agitated; "the sea was churning in the storm"