flan vs éclair

flan

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

  • A coin die. (Compare planchet.) 

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

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

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

éclair

noun
  • A small chocolate-covered creme-filled pastry puff in a general oblong shape, typically larger than the miniature French version. 

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