multimillionaire vs nabob

multimillionaire

noun
  • A person whose net worth is multiple million dollars, pounds, euros or some other currency. 

nabob

noun
  • Someone of great wealth or importance. 

  • A person with a grandiose style or manner. 

  • An Indian ruler within the Mogul empire. 

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