boil up vs braise

boil up

verb
  • To cook or prepare by boiling. 

  • To become more excited, intense or exciting. 

noun
  • A traditionally Maori soup/stew made with potatoes, pork and other ingredients. 

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) 

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