braise vs pottage

braise

noun
  • A dish (usually meat) prepared by braising. 

  • A sauce used for braising. 

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

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

pottage

noun
  • A thick soup or stew, made by boiling vegetables, grains, and sometimes meat or fish, a staple food throughout Europe in the Middle Ages. 

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