backset vs raze

backset

noun
  • Whatever is thrown back in its course, such as water. 

  • A check; a relapse; a discouragement; a setback. 

verb
  • To plow again in the fall; said of prairie land broken up in the spring. 

raze

noun
  • A swinging fence in a watercourse to prevent cattle passing through. 

verb
  • To destroy; to strike out of existence; to obliterate. 

  • To scrape as if with a razor. 

  • To demolish; to level to the ground. 

How often have the words backset and raze occurred in a corpus of books? (source: Google Ngram Viewer )