grafter vs tough

grafter

noun
  • A corrupt person, one who receives graft. 

  • An instrument by which grafting is facilitated. 

  • One who inserts scions on other stocks, or propagates fruit by engrafting. 

  • Someone who works in market stalls. 

  • a hard worker who puts in long hours 

  • The original tree from which a scion has been taken for grafting upon another tree. 

tough

noun
  • A person who obtains things by force; a thug or bully. 

adj
  • Harsh or severe. 

  • Difficult or demanding. 

  • Stubborn or persistent; capable of stubbornness or persistence. 

  • Strong and resilient; sturdy. 

  • Undergoing plastic deformation before breaking. 

  • Difficult to cut or chew. 

  • Rugged or physically hardy. 

  • Rowdy or rough. 

intj
  • Used to indicate lack of sympathy 

verb
  • To endure. 

  • To toughen. 

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