1. Locate the content in Content Management > Site Structure and open it
  2. Click on the Content tab
  3. Make any change within the content (add a space, rewrite a word, etc.)*
  4. Mark the box next to Publish Immediately
  5. Click OK or Apply
  6. The content should be restored and the name will no longer have a strike-through.
*If no changes are made and the content is published, the content will be deleted from the Site Structure entirely. Ensure that at least one change has been made within the content editor.