root out
US /ruːt aʊt/
UK /ruːt aʊt/

1.
erradicar, eliminar
find and get rid of a person or thing that is unwanted
:
•
The police are trying to root out corruption in the department.
A polícia está tentando erradicar a corrupção no departamento.
•
We need to root out the cause of the problem.
Precisamos erradicar a causa do problema.