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gâteau

American  
[ga-toh, gah-, gah-toh] / gæˈtoʊ, gɑ-, gɑˈtoʊ /

noun

French Cooking.

plural

gâteaux
  1. a cake, especially a very light sponge cake with a rich icing or filling.


gateau British  
/ ˈɡætəʊ /

noun

  1. any of various elaborate cakes, usually layered with cream and richly decorated

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of gâteau

1835–45; < French; Old French gastel (compare Middle English wastel < Old North French ) < Frankish *wastil, perhaps akin to Old English, Old Saxon wist food, nourishment