Sentence:  And he [the hart] fleeth then mightily and far from the hounds, that is to say he hath gone a great way from them, then he will go into the <WSD>stank</WSD>, and will soil therein once or twice in all the <WSD>stank</WSD> and then he will come out again by the same way that he went in, and then he shall ruse again the same way that he came (the length of) a bow shot or more, and then he shall ruse out of the way, for to stall or squatt to rest him, and that he doeth for he knoweth well that the hounds shall come by the fues [footing] into the <WSD>stank</WSD> where he was. 
Meaning of the word marked with <WSD> tags:  Water retained by an embankment; a pool of water.