difficult vs eristic

difficult

adj
  • Hard to manage, uncooperative, troublesome. 

  • Hard, not easy, requiring much effort. 

eristic

adj
  • Provoking strife, controversy or discord. 

noun
  • One who makes specious arguments; one who is disputatious. 

  • A type of dialogue or argument where the participants do not have any reasonable goal. The aim is to argue for the sake of conflict, and often to see who can yell the loudest. 

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