josser vs old-age pensioner

josser

noun
  • An outsider working in a circus. 

  • A man, especially one who seems foolish or simpleminded. 

  • A clergyman. 

old-age pensioner

noun
  • A person in receipt of an old age pension, a senior citizen. 

How often have the words josser and old-age pensioner occurred in a corpus of books? (source: Google Ngram Viewer )