The Collaborative International Dictionary of English v.0.48:

Swoopstake \Swoop"stake`\, n.
   See Sweepstake. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Swoopstake \Swoop"stake`\, adv.
   Altogether; indiscriminately. [R.] --Shak.
   [1913 Webster]