braise vs levigate

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) 

levigate

verb
  • To separate finer grains from coarser ones by suspension in a liquid. 

  • To make smooth or polish. 

  • To lighten. 

  • To belittle. 

  • To make into a smooth paste or fine powder. 

adj
  • Smooth. 

  • Made less harsh or burdensome; alleviated. 

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