braise vs warm up

braise

verb
  • To cook in a small amount of liquid, in a covered pan, somewhere between steaming and boiling. 

noun
  • A sauce used for braising. 

  • A dish (usually meat) prepared by braising. 

  • Pagellus bogaraveo, syn. Pagellus centrodontus (sea bream) 

warm up

verb
  • To heat or reheat (e.g. food). 

  • To reach, or cause to reach, a normal operating temperature (of a car for example). 

  • To become warmer. 

  • To do gentle exercise, stretching etc., in order to prepare the body for more vigorous exercise. 

  • To make (an audience) enthusiastic or animated before a show 

  • To prepare for an activity by carrying out a practice or preparation routine. 

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