exhume vs ungrave

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. 

ungrave

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