Agitation is a state of nervous excitement, worry, or emotional upset, or the act of stirring up a liquid or a group of people. It can describe both inner restlessness and outward political or social protest.
From Latin *agitare* meaning “to set in motion, drive, stir up,” through French *agitation*. Over time, the idea of physically shaking something expanded to include stirring up emotions or public opinion.
Think of a washing machine: it agitates clothes by constantly moving them around. The same image works for your mind or a crowd—agitation is mental or social ‘shaking’ that doesn’t let things settle.
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