enervate vs let sunshine in

enervate

adj
  • Made feeble; weakened. 

verb
  • To weaken morally or mentally. 

  • To partially or completely remove a nerve. 

  • To reduce strength or energy; debilitate. 

let sunshine in

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