hammering vs lathering

hammering

noun
  • A period of being beaten or hammered. 

  • A heavy defeat. 

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

lathering

noun
  • The act of lathering; a covering with lather. 

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