sadhu vs yogi

sadhu

noun
  • An ascetic or practitioner of yoga (yogi) who has given up pursuit of the first three Hindu goals of life: kama (enjoyment), artha (practical objectives) and even dharma (duty). 

yogi

noun
  • A devotee or adherent of yoga. 

verb
  • To persuade someone to give you food or other favors without actually begging. 

  • To turn (someone) into a yogi; to lead into practicing yoga. 

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