bank holiday vs sabbatical

bank holiday

noun
  • A weekday, often a Monday, on which most businesses are closed, and granted to workers as a national holiday. 

  • A closure of banks in a jurisdiction to curtail or prevent a bank run. 

sabbatical

noun
  • An extended period of leave from a person's usual pursuits. 

adj
  • Relating to the Sabbath. 

  • Relating to a sabbatical. 

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