anchoress vs stylite

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. 

stylite

noun
  • A Christian ascetic in ancient times who lived alone on top of a tall pillar. 

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