decorticate vs peel away

decorticate

verb
  • To peel or remove the bark, husk, or outer layer from something. 

  • To surgically remove the surface layer, membrane, or fibrous cover of an organ etc. 

adj
  • Having had the cortex removed 

peel away

verb
  • To become separate through peeling. 

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

  • To take away from something else. 

  • 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 decorticate and peel away occurred in a corpus of books? (source: Google Ngram Viewer )