Neanderthal vs troglodyte

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. 

troglodyte

noun
  • A reclusive, reactionary or out-of-date person, especially if brutish. 

  • A person who chooses not to keep up-to-date with the latest software and hardware. 

  • Anything that lives underground. 

  • The Eurasian wren, Troglodytes troglodytes. 

  • A member of a supposed prehistoric race that lived in caves or holes, a caveman. 

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