egoism vs pretension

egoism

noun
  • The tendency to think selfishly with exclusive self-interest in mind. 

  • Egotism (tendency to talk excessively about oneself). 

  • The belief that moral behavior should be directed toward one's self-interest only. 

pretension

noun
  • Pretentiousness. 

  • A claim or aspiration to a particular status or quality. 

verb
  • To apply tension to reinforcing strands before concrete is poured in. 

  • To apply tension to an object before some other event or process. 

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