shillelagh vs spontoon

shillelagh

noun
  • A wooden (traditionally blackthorn (sloe) wood) club ending with a large knob. 

  • Any cudgel, whether or not of Irish origin. 

spontoon

noun
  • A pointed weapon similar to a pike. 

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