cooperate vs refuse

cooperate

verb
  • To function in harmony, side by side 

  • To work or act together, especially for a common purpose or benefit. 

  • To allow for mutual unobstructed action 

  • To engage in economic cooperation. 

refuse

noun
  • Collectively, items or material that have been discarded; rubbish, garbage. 

verb
  • To decline a request or demand, forbear; to withhold permission. 

  • To melt again. 

  • To decline (a request or demand). 

  • To throw back, or cause to keep back (as the centre, a wing, or a flank), out of the regular alignment when troops are about to engage the enemy. 

adj
  • Discarded, rejected. 

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