sultana vs tanner

sultana

noun
  • An old form of necklace. 

  • A female ruler of a sultanate. 

  • A pale yellow raisin made from a seedless grape. 

  • A type of viol, a cither viol. 

  • A wife or mistress of a sultan. 

tanner

noun
  • A former British coin worth six old pence. 

  • A type of commercially-fished crab, Chionoecetes bairdi or Chionoecetes opilio. 

  • A person whose occupation is to tan hides, or convert them into leather by the use of tan. 

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