affliction vs rue

affliction

noun
  • Something which causes pain, suffering, distress or agony. 

  • A state of pain, suffering, distress or agony. 

rue

noun
  • Any of various perennial shrubs of the genus Ruta, especially the herb Ruta graveolens (common rue), formerly used in medicines. 

verb
  • To repent of or regret (some past action or event); to wish that a past action or event had not taken place. 

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