Stick vs assured

Stick

noun
  • A member of the Official IRA. 

name
  • The Chapman Stick, an electric musical instrument devised by Emmett Chapman. 

assured

noun
  • An insured person. 

adj
  • Guaranteed; secure. 

  • Self-confident; self-assured; sure. 

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