cleg vs recalcitrant

cleg

noun
  • A light breeze. 

  • A blood-sucking fly of the family Tabanidae; a gadfly, a horsefly. 

recalcitrant

noun
  • A person who is recalcitrant. 

adj
  • Not viable for an extended period; damaged by drying or freezing. 

  • Unwilling to cooperate socially. 

  • Difficult to deal with or to operate. 

  • Marked by a stubborn unwillingness to obey authority. 

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