rehabilitate
US /ˌriː.həˈbɪl.ə.teɪt/
UK /ˌriː.həˈbɪl.ə.teɪt/

1.
restore (someone) to health or normal life by training and therapy after imprisonment, addiction, or illness
:
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The program aims to rehabilitate offenders.
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She is trying to rehabilitate her knee after the injury.
2.
restore (something) to its former condition or state
:
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They plan to rehabilitate the old building.
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Efforts are being made to rehabilitate the damaged ecosystem.