Roma vs tzigane

Roma

noun
  • A Romani; a member of the Roma/Romani people. 

  • A variety of tomato. 

adj
  • Romani: of or pertaining to the Roma people. 

name
  • A subgroup of the Romani people found primarily in Eastern Europe. 

  • Any of a number of places, including a city in Texas and a city in Queensland. 

  • A female given name from Latin of English-speakers. 

  • A nomadic people with origins in India, the Romani. 

  • An Austronesian language of Indonesia. 

  • A variety of the Romani language (or occasionally) the Romani macrolanguage. 

tzigane

noun
  • A Hungarian Gypsy (Romani person). 

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