Mongol Tatar vs Tatar

Mongol Tatar

Tatar

noun
  • A person belonging to one of several Turkic, Tatar-speaking ethnic groups in Eastern Europe, Russia and Central Asia. 

adj
  • Of or relating to the people or culture of Tatars. 

name
  • An agglutinative language belonging to the Altai group of Turkic languages. It is an official language of Tatarstan. There are some eight million speakers spread across Eastern Europe, Russia and Central Asia. 

  • A surname. 

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