disuse (state of inactivity or . . . ) n.: desuetude
Since Vietnam, members of Congress have tried to prevent administrations from sneaking the country into a war. The first effort, the War Powers Act, fell into desuetude. It was designed to give Congress a mechanism for disapproving incremental escalations, but Congress hesitated to invoke it when troops were in peril. (Michael Barone, “A Question of Going to War,” U.S. News & World Report, 11/1/1993.)
