Backset /(băk"sĕt`)/

Back·set

Backset

n.
  1. A check; a relapse; a discouragement; a setback.
  2. Whatever is thrown back in its course, as water.
    Slackwater, or the backset caused by the overflow.

Backset

v. t.
  1. To plow again, in the fall; -- said of prairie land broken up in the spring. [Western U.S.]