Other forms: inveighed; inveighing; inveighs
Picture an old man banging his fist on the dinner table, inveighing against the evils of teenagers being allowed to listen to music and dance. Inveigh means to rail against something with hostility and passion.
Related to vehicle, inveigh comes from Latin in- + vehere "to carry." During the Vietnam War, war protesters held rallies where young men burned their draft cards and inveighed against the imperialist motives by which our country was being driven and the war's escalation without its ever being properly authorized in Congress.