placate vs prejudice

placate

verb
  • To calm; to bring peace to; to influence someone who was furious to the point that they become content or at least no longer irate. 

prejudice

noun
  • An adverse judgment or opinion formed beforehand or without knowledge of the facts. 

  • A preconception, any preconceived opinion or feeling, whether positive or negative. 

  • An irrational hostile attitude, fear or hatred towards a particular group, race or religion. 

verb
  • To have a negative impact on (someone's position, chances etc.). 

  • To cause prejudice in; to bias the mind of. 

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