impeach

To hinder, impede, or prevent.

These ungracious practices of his sons did impeach his journey to the Holy Land.

I was afraid the same defluxion of Salt Rheum which fell from my Temples into my Throat in Oxford, and distilling upon the Uvula, impeached my Utterance a little to this Day

To bring a legal proceeding against a public official.

President Clinton was impeached by the House in November 1998, but since the Senate acquitted him, he was not removed from office.

To charge with impropriety; to discredit; to call into question.

To demonstrate in court that a testimony under oath contradicts another testimony from the same person, usually one taken during deposition.