anchoress vs yogi

anchoress

noun
  • A female anchorite. A woman who chooses to withdraw from the world to live a solitary life of prayer and contemplation. 

  • An anchorwoman. 

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 anchoress and yogi occurred in a corpus of books? (source: Google Ngram Viewer )