pretension vs servility

pretension

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

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

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

  • Pretentiousness. 

servility

noun
  • The condition of being servile. 

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