backset vs blessing

backset

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

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

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

blessing

noun
  • A pronouncement invoking divine aid. 

  • Good fortune. 

  • A modern pagan ceremony. 

  • Some kind of divine or supernatural aid, or reward. 

  • The act of declaring or bestowing favor; approval. 

  • A group of unicorns. 

  • A prayer before a meal; grace. 

  • Something someone is glad of. 

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