kiss of death vs suffering

kiss of death

noun
  • A kiss on the cheek that signifies the death of the receiver, as delivered by a mob boss or one with such influence. 

  • Something that may seem good and favourable but that actually brings ruin to hopes, plans, etc. 

suffering

noun
  • The condition of someone who suffers; a state of pain or distress. 

adj
  • Experiencing pain; characterized by suffering. 

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