lender vs savings bank

lender

noun
  • One who lends, especially money; specifically, a bank or other entity that specializes in granting loans. 

savings bank

noun
  • A type of financial institution that focuses on retail banking: savings of private depositors, payments, credits and insurances for individuals or small and medium-sized enterprises. 

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