dyskredytować in inglese:

He meant to discredit the leader.

Such practices discredit the State Language Law, as well as raises doubts of the ability of the authorities to ensure its observance.

to make others think that something or someone lacks the positve features they used to believe inHe meant to discredit the leader.

The company's lawyers tried to discredit her testimony.; To her discredit, she never admitted her role in the scandal.