destruct vs moisten

destruct

verb
  • To self-destruct. 

  • To invoke the destructor of. 

  • To intentionally cause the destruction of. 

moisten

verb
  • To become moist or moister. 

  • To make moist or moister. 

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