crumble vs grime

crumble

verb
  • To break into crumbs. 

  • To fall apart; to disintegrate. 

  • To mix (ingredients such as flour and butter) in such a way as to form crumbs. 

noun
  • A dessert of British origin containing stewed fruit topped with a crumbly mixture of fat, flour, and sugar. 

grime

verb
  • To begrime; to cake with dirt. 

noun
  • Dirt, grease, soot, etc. that is ingrained and difficult to remove. 

  • A genre of urban music that emerged in London, England, in the early 2000s, primarily a development of UK garage, dancehall, and hip hop. 

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