Belarusian vs White Russian

Belarusian

adj
  • Of, from, or pertaining to Belarus, the Belarusian people. 

noun
  • The Slavic language spoken in Belarus (formerly called White Ruthenia or White Russia). 

  • A citizen of Belarus. 

White Russian

adj
  • Of or relating to Russians with tsarist sympathies in the period directly following the 1917 Revolution. 

noun
  • A cocktail consisting of coffee liqueur, vodka, and milk. 

  • A White Guardist, a Russian who supported the tsar in the 1917 Revolution and the Russian Civil War (1917–1923), and afterward. 

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