agitate

Concise Oxford English Dictionary © 2008 Oxford University Press:
agitate/ˈaʤɪteɪt/

▶verb

• 1 (often as adj. agitated) make troubled or nervous.

• 2 campaign to arouse public concern about an issue.

• 3 stir or disturb (a liquid) briskly.

– derivatives
agitatedly adverb,
agitation noun,
agitator noun.

– origin ME (in the sense ‘drive away’): from L. agitat-, agitare ‘agitate, drive’, frequentative of agere ‘do, drive’.