monasticism vs spinsterhood

monasticism

noun
  • The practice of renouncing all worldly pursuits in order to fully devote one's life to spiritual work. 

spinsterhood

noun
  • The condition of being a spinster. 

  • The time during which one is a spinster. 

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