fall off vs shrivel

fall off

verb
  • To become detached or to drop from. 

  • To diminish in size, value, etc. 

  • To fall into sin; stray. 

  • To change the direction of the sail so as to point in a direction that is more down wind; to bring the bow leeward. 

shrivel

verb
  • To collapse inward; to crumble. 

  • To become wrinkled. 

  • To draw into wrinkles. 

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