caveman vs troglodyte

caveman

noun
  • A brutish person, one who behaves in a rough, uncivilized way. 

  • Someone, especially a man, who has regressive, old-fashioned attitudes, particularly with regard to women; someone opposed to change or modernity. 

  • A person with backward, primitive behavior, opinions, or interests. 

  • An early human or closely related species, popularly held to reside in caves. 

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  • A reclusive, reactionary or out-of-date person, especially if brutish.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 caveman and troglodyte occurred in a corpus of books? (source: Google Ngram Viewer )