de·sta·bi·lize [ dee stáybə lz ](past and past participlede·sta·bi·lized, present participlede·sta·bi·liz·ing, 3rd person present singularde·sta·bi·liz·es)
transitive verb
Definition:
undermine and make unstable: to make something, especially a government or economy, unstable in order to impair its functioning or bring about its collapse
