Then the great objection he had felt to allowing news of his proximity to precede him to Weatherbury in the event of his return, based on a feeling that knowledge of his present occupation would discredit him still further in his wife’s eyes, returned in full force.
There are no more uses of "discredit" in the book.
Show samples from other sources
She spoke only of her strengths, but others on her campaign staff worked to discredit her opponent.
Russian TV is famous for inventing stories to discredit those who disagree with Russian interests.