amend vs mend

amend

verb
  • To make better; improve. 

  • To make a formal alteration (in legislation, a report, etc.) by adding, deleting, or rephrasing. 

  • To become better. 

noun
  • An act of righting a wrong; compensation. 

mend

verb
  • To grow better; to advance to a better state; to become improved. 

  • To repair (something that is torn, broken, defaced, decayed, or otherwise damaged) 

  • To put in a better state; to set right; to reform; 

  • To quicken 

  • To help, to advance, to further; to add to. 

noun
  • A place, as in clothing, which has been repaired by mending. 

  • The act of repairing or recovering. 

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