devour vs overburden

devour

verb
  • To rapidly destroy, engulf, or lay waste. 

  • To take in avidly with the intellect or with one's gaze. 

  • To absorb or engross the mind fully, especially in a destructive manner. 

  • To eat quickly, greedily, hungrily, or ravenously. 

overburden

verb
  • To overload or overtax. 

noun
  • A sterile stratum that lies above the stratum being investigated 

  • The rock and subsoil that lies above a mineral deposit such as a coal seam. 

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