hammering vs tormenting

hammering

noun
  • A period of being beaten or hammered. 

  • A heavy defeat. 

  • A dented appearance on silverware, produced by successive blows of a hammer. 

tormenting

noun
  • The act by which somebody is tormented. 

adj
  • Involving or causing torment. 

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