pushmi-pullyu vs stubborn

pushmi-pullyu

noun
  • A person who behaves in a conflicting or contradictory manner. 

adj
  • in teleosemantics, being a representation with both indicative and imperative content. 

  • Conflicting or contradictory. 

stubborn

noun
  • Stubbornness. 

  • A disease of citrus trees characterized by stunted growth and misshapen fruit, caused by Spiroplasma citri. 

adj
  • Refusing to move or to change one's opinion; obstinate; firmly resisting; persistent in doing something. 

  • Of materials: physically stiff and inflexible; not easily melted or worked. 

How often have the words pushmi-pullyu and stubborn occurred in a corpus of books? (source: Google Ngram Viewer )