From Longman Dictionary of Contemporary Englishreactivatere‧ac‧tiv‧ate /riˈæktɪveɪt/ AWL verb [transitive] START something/MAKE something STARTto make something start working again→ See Verb table
Examples from the Corpus
reactivate• Scientists are now exploring ways of limiting this, including reactivating disused sewage seepage fields in the area.• What if you forget to flip the switch reactivating the air bags and then hit another car head on?• It will be much easier to reactivate the application of an unsuccessful candidate who has been let down gently.• He was unimpressed by suggestions that it would be sufficient if Britain could reactivate the base in certain emergencies.• I reactivated the potentially offending pieces of software, one by one, waiting until the problem reappeared.• My previous attempts at getting rid of them had had the effect of reactivating them.• The fundamentalist opposition movements that extol the veil are reactivating this age-old connection.• Unbeknownst to Wiener, he was not the first modern scientist to reactivate this word. 