commit suicide vs duppy

commit suicide

verb
  • To kill oneself; to take one's own life. 

duppy

verb
  • To kill; to murder. 

  • To excel in. 

noun
  • A ghost or spirit, often appearing in the form of a dog barking or howling through the night. 

  • A drawn game of noughts and crosses (in Jamaica tii-taa-tuo). 

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