esteem vs overburden

esteem

noun
  • Favourable regard. 

verb
  • To regard something as valuable; to prize. 

  • To look upon something in a particular way. 

  • To set a high value on; to regard with respect or reverence. 

overburden

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. 

verb
  • To overload or overtax. 

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