panjandrum vs selfship

panjandrum

noun
  • A self-important or pretentious person. 

  • An important, powerful or influential person. 

  • A massive, rocket-propelled, explosive-laden cart designed by the British military during World War II. 

selfship

noun
  • The state, essence, or quality of self; identity; individuality. 

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