delayer vs hand-sitter

delayer

noun
  • One who delays. 

  • A substance that is used to slow the rate of combustion of a solid rocket fuel so as to make it more controllable 

verb
  • To remove layers from; to strip away levels from. 

hand-sitter

noun
  • A person who sits on their hands; one who dawdles or remains idle when action is needed. 

  • An unenthusiastic or unresponsive member of an audience. 

How often have the words delayer and hand-sitter occurred in a corpus of books? (source: Google Ngram Viewer )