cold shoulder vs pester

cold shoulder

noun
  • A deliberate act of disrespect; a slight or snub 

verb
  • To deliberately slight or snub someone. 

pester

noun
  • A bother or nuisance. 

verb
  • To bother, harass, or annoy persistently. 

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