Reactivate (verb)

To activate again; to bring back into action or use.

Origin:

Re- + activate.

Examples:

1. The company reactivated its dormant social media account.
2. I had to reactivate my gym membership after a long break.
3. The old software was reactivated to retrieve the lost data.
4. The doctor reactivated the patient's medication to help alleviate the symptoms.
5. The company is reactivating the project after a successful pilot run.