give sb back sth | ˌgive sth ↔ ˈback (to sb)
1.
to return sth to its owner :
Could you give me back my pen?
Could you give me my pen back?
I picked it up and gave it back to him.
( informal )
Give it me back!
2.
to allow sb to have sth again :
The operation gave him back the use of his legs.