demur at vs spurn

demur at

spurn

noun
  • An act of spurning; a scornful rejection. 

  • A kick; a blow with the foot. 

  • A body of coal left to sustain an overhanging mass. 

verb
  • To waste; fail to make the most of (an opportunity) 

  • To reject disdainfully; contemn; scorn. 

  • To reject something by pushing it away with the foot. 

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