raillery vs sarcasm

raillery

noun
  • Good-natured banter, jest, or ridicule. 

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. 

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