excavate vs exhume

excavate

verb
  • To remove part of (something) by scooping or digging it out. 

  • To uncover (something) by digging. 

  • To make a hole in (something); to hollow. 

noun
  • Any member of a major grouping of unicellular eukaryotes, of the clade Excavata. 

exhume

verb
  • To dig out of the ground; to take out of a place of burial; to disinter. 

  • To uncover; to bring to light. 

  • The archeologist exhumed artifacts from the ground with a shovel. 

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