lividity vs pockmark

lividity

noun
  • A livid area of skin, such as a bruise, or as is often found on cadavers. 

  • Livor mortis, suggillation. 

  • The state or quality of being livid. 

pockmark

noun
  • A mark or scar in the skin caused by a pock. 

  • A crater in the seafloor caused by erupting gas or liquid. 

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