The Collaborative International Dictionary of English v.0.48:

Gin \Gin\, v. t. [imp. & p. p. Ginned; p. pr. & vb. n.
   Ginning.]
   1. To catch in a trap. [Obs.] --Beau. & Fl.
      [1913 Webster]

   2. To clear of seeds by a machine; as, to gin cotton.
      [1913 Webster]