attenuate vs mend

attenuate

verb
  • To become thin or fine; to grow less. 

  • To reduce the amplitude of an electrical, radio, or optical signal. 

  • To weaken. 

  • To reduce in size, force, value, amount, or degree. 

  • To rarefy. 

  • (of a beer) To become less dense as a result of the conversion of sugar to alcohol. 

  • To reduce the virulence of a bacterium or virus. 

  • To make thinner, as by physically reshaping, starving, or decaying. 

adj
  • Gradually tapering into a petiole-like extension toward the base. 

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 attenuate and mend occurred in a corpus of books? (source: Google Ngram Viewer )