sanguineous vs sanguivolent

sanguineous

adj
  • Resembling or constituting blood. 

  • Eager for bloody violence; bloodthirsty. 

  • Accompanied by bloodshed; bloody. 

sanguivolent

adj
  • bloodthirsty 

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