overburden vs trespass

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. 

trespass

verb
  • To go too far; to put someone to inconvenience by demand or importunity; to intrude. 

  • To decree that a person shall be arrested for trespassing if he or she returns to someone else's land. 

  • To enter someone else's property illegally. 

noun
  • An intentional interference with another's property or person. 

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