helping vs hurtful

helping

noun
  • A portion or serving, especially of food that one takes for oneself, or to which one helps oneself. 

  • An amount or quantity 

hurtful

adj
  • Tending to hurt someone's feelings; insulting. 

  • Tending to impair or damage; injurious; occasioning loss or injury. 

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