intransigent vs mossback

intransigent

noun
  • A person who is intransigent. 

adj
  • Unwilling to compromise or moderate a position; unreasonable. 

mossback

noun
  • Synonym of mossyback (“a person with old-fashioned views; hence, one who is very conservative or reactionary”) 

  • The largemouth bass or moss bass (Micropterus salmoides). 

  • Synonym of mossyback (“a fish that is large and old, especially one that has algae growing on its back”) 

  • A person who stayed hidden to evade conscription (especially by the Confederate States Army) during the American Civil War (1861–1865); a mossyback. 

  • A turtle that, because of its age, has a growth of algae on its back 

  • The common snapping turtle (Chelydra serpentina). 

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