Verb
undiscover (third-person singular simple present undiscovers, present participle undiscovering, simple past and past participle undiscovered)
(transitive) To forget or revoke the discovery of (something discovered earlier).
Certainly science, because of its ability to increase our capacities to do things, raises terrible risks for us all. If it were possible to undiscover nuclear fission, I would be very happy to undiscover it, because of the risks that it puts us all under. Steven Weinberg