brush off vs spurn

brush off

verb
  • To disregard (something), to dismiss or ignore (someone), as unimportant. 

  • Used other than figuratively or idiomatically: see brush, off. To remove something with a brush. 

spurn

verb
  • To reject disdainfully; contemn; scorn. 

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

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

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. 

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