blancmange vs custard

blancmange

noun
  • A simple dessert made by cooking sweetened milk with cornstarch and vanilla. 

  • A dish, eaten in the Middle Ages, generally consisting of chicken (or sometimes capon or fish), milk or almond milk, rice, and sugar. 

custard

noun
  • A similar sauce made from milk and cornflour or custard powder (and usually sugar, and sometimes vanilla or other flavourings) and thickened by heat. 

  • A type of sauce made from milk and eggs (and usually sugar, and sometimes vanilla or other flavourings) and thickened by heat, served hot poured over desserts, as a filling for some pies and cakes, or cold and solidified; also used as a base for some savoury dishes, such as quiches, or eaten as a stand-alone dessert; egg custard. 

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