Drug

drug, n. any substance used in the composition of medicine: an article that cannot be sold, generally owing to overproduction.— v.t. to mix or season with drugs: to dose to exce .— v.i. to prescribe drugs or medicines:— pr.p. drug′ging; pa.p. drugged.— n. Drug′gist , one who deals in drugs. [O. Fr. drogue , prob. from Dut. droog , dry; as if applied orig. to dried herbs.]