decision vs shilly-shallying

decision

verb
  • To defeat an opponent by a decision of the judges, rather than by a knockout 

noun
  • A result arrived at by the judges when there is no clear winner at the end of the contest. 

  • Firmness of conviction. 

  • A choice or judgement. 

  • A win or a loss awarded to a pitcher. 

  • The act of deciding. 

shilly-shallying

noun
  • The action of the verb 

How often have the words decision and shilly-shallying occurred in a corpus of books? (source: Google Ngram Viewer )