moisten vs shrivel

moisten

verb
  • To become moist or moister. 

  • To make moist or moister. 

shrivel

verb
  • To become wrinkled. 

  • To collapse inward; to crumble. 

  • To draw into wrinkles. 

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