allay vs confuse

allay

verb
  • To alleviate; to abate; to mitigate. 

  • To make quiet or put at rest; to pacify or appease; to quell; to calm. 

noun
  • Alleviation; abatement; check. 

confuse

verb
  • To mix up, muddle up (one thing with another); to mistake (one thing for another). 

  • to puzzle, perplex, baffle, bewilder (somebody); to afflict by being complicated, contradictory, or otherwise difficult to understand 

  • To mix thoroughly; to confound; to disorder. 

  • To be confused. 

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