crumble vs spalt

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. 

spalt

verb
  • To break off pieces, or have them broken off, especially with an axe etc; to splinter. 

noun
  • Spelter. 

adj
  • Heedless; clumsy; pert; saucy. 

  • Brittle. 

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