sarcasm vs sweetness

sarcasm

noun
  • An act of sarcasm. 

  • Use of acerbic language to mock or convey contempt, often using irony and (in speech) often marked by overemphasis and a sneering tone of voice. 

sweetness

noun
  • A pleasant disposition; kindness. 

  • Term of address for one's sweetheart. 

  • The condition of being sweet or sugary. 

  • The quality of giving pleasure to the mind or senses, pleasantness, agreeableness. 

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