What is "to tread out"

Tread \Tread\, v. t.

1. To step or walk on.

   Forbid to tread the promised land he saw.
   --Prior.

   Methought she trod the ground with greater grace.
   --Dryden.

2. To beat or press with the feet; as, to tread a path; to tread land when too light; a well-trodden path.

3. To go through or accomplish by walking, dancing, or the like. `` I am resolved to forsake Malta, tread a pilgrimage to fair Jerusalem.''
   --Beau. & Fl.

   They have measured many a mile, To tread a measure with you on this grass.
   --Shak.

4. To crush under the foot; to trample in contempt or hatred; to subdue.

   Through thy name will we tread them under that rise up against us.
   --Ps. xliv.

5. 5. To copulate with; to feather; to cover; -- said of the male bird.
   --Chaucer.

   To tread out, to press out with the feet; to press out, as wine or wheat; as, to tread out grain with cattle or horses.

   To tread the stage, to act as a stageplayer; to perform a part in a drama.