expunge vs peel away

expunge

verb
  • To erase or strike out. 

  • To eliminate completely; to annihilate. 

  • To delete permanently (e-mail etc.) that was previously marked for deletion but still stored. 

peel away

verb
  • To take away from something else. 

  • To burn out while accelerating and rapidly depart; to peel off, peel out. 

  • To become separate through peeling. 

  • To separate off from the main body; to move off to one side (as in troop movements on a parade ground or in an organized retreat, or columns in a procession). 

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