Sentence:  “No!” returned the spy. “I <WSD>throw up</WSD>. I confess that we were so unpopular with the outrageous mob, that I only got away from England at the risk of being ducked to death, and that Cly was so ferreted up and down, that he never would have got away at all but for that sham. Though how this man knows it was a sham, is a wonder of wonders to me.” 
Meaning of the word marked with <WSD> tags:  To give up, abandon something.