actuate
From Longman Dictionary of Contemporary Englishactuateac‧tu‧ate /ˈæktʃueɪt/ verb [transitive] formal 1 → be actuated by something2 START something/MAKE something STARTto make a piece of machinery start to operate→ See Verb tableExamples from the Corpusactuate• Additional components comprise an extra electro-hydraulic control valve to actuate fourth-to-fifth and fifth-to-fourth shifts and the extra gear set itself.• an electrically actuated lockOrigin actuate (1500-1600) Medieval Latin past participle of actuare, from Latin actus; → ACT1