pester vs wickedness

pester

noun
  • A bother or nuisance. 

verb
  • To bother, harass, or annoy persistently. 

wickedness

noun
  • A wicked or sinful thing or act; morally bad or objectionable behaviour. 

  • The state of being wicked; evil disposition; immorality. 

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