Sentence:  He us'd all the Caution that he was able in letting me know a thing, which it would have been a double Cruelty to have conceal'd; and yet it was too much for me; for as Grief had <WSD>overset</WSD> me before, so did Joy <WSD>overset</WSD> now, and I fell into a much more dangerous Swooning than I did at first ... 
Meaning of the word marked with <WSD> tags:  To physically disturb (someone); to make nauseous, upset.