Romani vs gitano

Romani

adj
  • Of or belonging to the Roma people. 

name
  • The Indo-Aryan lect of the Roma people, or one of its sublects (such as Roma, Sinti, Romanichal, etc), closely related to Hindi and Rajasthani. 

noun
  • A member of the Roma, a nomadic people with origins in India. 

gitano

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