backset vs redound

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. 

redound

noun
  • A coming back, as an effect or consequence; a return. 

verb
  • To reverberate, to echo. 

  • To attach, come back, accrue to someone; to reflect back on or upon someone (of honour, shame etc.). 

  • To roll back; to be sent or driven back. 

  • To arise from or out of something. 

  • To contribute to an advantage or disadvantage for someone or something. 

  • To contribute to the honour, shame etc. of a person or organisation. 

  • To reflect (honour, shame etc.) to or onto someone. 

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