bagel vs kipfel

bagel

noun
  • A toroidal bread roll that is boiled before it is baked. 

  • A score of 6-0 in a set (after the shape of a bagel, which looks like a zero). 

  • An overly materialistic and selfish young Jewish man. 

verb
  • To achieve a score of 6–0 in a tennis set. 

  • To hold an opponent to a score of zero. 

kipfel

noun
  • A type of crescent-shaped biscuit or bread roll. 

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