Sentence:  This is all that ever stagger'd my faith in regard to "Yorick'''s extraction, who, by what I can remember of him, and by all the accounts I could ever get of him, seem'd not to have had one single drop of "Danish" blood in his whole <WSD>crasis</WSD> 
Meaning of the word marked with <WSD> tags:  One's constitution; the balance of humours in a person's body.