café au lait vs decaf

café au lait

noun
  • A mixture of coffee and hot milk. 

  • A light coffee colour. 

  • Coffee and hot milk served in separate jugs as a breakfast drink. 

decaf

noun
  • A decaffeinated coffee, tea, or soft drink. 

How often have the words café au lait and decaf occurred in a corpus of books? (source: Google Ngram Viewer )