Much and deservedly to my own discredit, therefore, and considerably to the detriment of my official conscience, they continued, during my incumbency, to creep about the wharves, and loiter up and down the Custom-House steps.
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.