latke vs pikelet

latke

noun
  • A pancake fried in oil, usually made from potatoes and sometimes also onions, traditionally served on Hanukkah. 

pikelet

noun
  • A thick type of sweet pancake. 

  • A thin crumpet. 

  • Any crumpet, regardless of thickness 

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