Hello!
you can restore the page from the trash, please see here: https://kb.nmsu.edu/page.php?id=73456
If it is deleted permanently then the only way to retrieve it to restore the most recent backup before deletion. I am sorry but it is not possible to restore a specific deleted page.
however, if the page was cached in google then maybe you can retrieve the content but it will not retrieve the page or its layout to your dashboard: https://blogvault.net/how-to-restore-deleted-page-in-wordpress/
Thank you!















