gymnosophist vs sannyasi

gymnosophist

noun
  • One of a school of ancient Indian ascetic philosophers, reported in antiquity, who wore little clothing; a mystic. 

sannyasi

noun
  • A man in the stage of sannyasa; a wandering ascetic, a religious mendicant. 

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