■ noun a medicine or other substance which has a marked physiological effect when taken into the body.
↘a substance with narcotic or stimulant effects.
■ verb ( ~s , ~ging , ~ged ) administer a ~ to, in order to induce stupor or insensibility.
Origin
ME: from OFr. drogue , perh. from MDu. droge vate , lit. 'dry vats', referring to the contents.