Neanderthal vs Untermensch

Neanderthal

noun
  • A primitive, savage or uncivilized person. 

  • A specimen of the now extinct species Homo neanderthalensis. 

adj
  • Of or pertaining to Homo neanderthalensis. 

  • Old-fashioned, opposed to change. 

  • Of or pertaining to the Neander Valley in Germany. 

Untermensch

noun
  • An inferior person; a subhuman, especially in a Nazi racial hierarchy. 

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