comminute vs crumble

comminute

verb
  • To pulverize; to smash. 

  • To cause fragmentation (of bone). 

  • To break into smaller portions. 

noun
  • Pulverized material. 

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. 

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