Definition of "backset"

backset

noun
plural backsets
1. A check; a relapse; a discouragement; a setback.
2. Whatever is thrown back in its course, such as water.
  Quotations
  Slackwater, or the backset caused by the overflow.
  , Harper's Magazine
verb
third-person singular simple present backsets, present participle backsetting, simple past and past participle backset
1. (US, especially Western US) To plow again in the fall; said of prairie land broken up in the spring.