Neanderthal vs neanderthal

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. 

neanderthal

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