1560s, "mental tossing to and fro," from French agitation, from Latin agitationem (nominative agitatio) "motion, agitation," noun of action from past participle stem of agitare "move to and fro," frequentative of agere in its sense of "to drive" (see act (n.)).
1. Danny returned to Father's house in a state of intense agitation.
2. Temperature is a measure of the agitation of the molecules of matter.
3. Diane lit a cigarette, trying to mask her agitation.
4. Dot arrived in a state of great agitation.
5. Small shopkeepers carried on a long agitation against the big department stores.