crackle vs decrepitate

crackle

verb
  • To make a prolonged, frequent cracking sound which sounds like fizzing or popping. 

noun
  • A prolonged, frequent cracking sound; a fizzing, popping sound. 

  • Synonym of crackling (“crispy rind of roast pork”) 

  • A style of glaze giving the impression of many small cracks. 

  • The fifth derivative of the position vector with respect to time (after velocity, acceleration, jerk, and jounce), i.e. the rate of change of jounce. 

decrepitate

verb
  • Of salts and minerals, to crackle when heated, indicating a sudden breakdown of their particles. 

  • To roast (a salt or mineral) until it stops crackling in the fire. 

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