overcome vs prevail

overcome

verb
  • To win or prevail in some sort of battle, contest, etc. 

  • To surmount (a physical or abstract obstacle); to prevail over, to get the better of. 

  • To prevail. 

  • To recover from (a difficulty), to get over 

  • To come or pass over; to spread over. 

noun
  • The burden or recurring theme in a song. 

  • A surplus. 

prevail

verb
  • To triumph; to be victorious. 

  • To be current, widespread, or predominant; to have currency or prevalence. 

  • To be superior in strength, dominance, influence, or frequency; to have or gain the advantage over others; to have the upper hand; to outnumber others. 

  • To succeed in persuading or inducing. 

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