conquer vs underwhelm

conquer

verb
  • To defeat in combat; to subjugate. 

  • To overcome an abstract obstacle. 

  • To acquire by force of arms, win in war; to become ruler of; to subjugate. 

underwhelm

verb
  • To fail to impress; to perform disappointingly. 

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