disc vs flan

disc

verb
  • To harrow with a disc harrow. 

  • To move towards, or operate at, zero blade pitch, orienting the propeller blades face-on to the oncoming airflow and maximising the drag generated by the propeller. 

noun
  • A vinyl phonograph / gramophone record. 

  • The flat surface of an organ, as a leaf, any flat, round growth. 

  • An intervertebral disc. 

  • Venus's disc cut off light from the Sun. 

  • Something resembling a disc. 

  • A thin, flat, circular plate or similar object. 

flan

verb
  • To splay or bevel internally, as a window-pane. 

noun
  • A coin die. (Compare planchet.) 

  • A fan of the U.S. TV series Firefly. 

  • Baked tart with sweet or savoury filling in an open-topped pastry case. (Compare quiche.) 

  • A dessert of congealed custard, often topped with caramel, especially popular in Spanish-speaking countries. 

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