chowder vs congee

chowder

noun
  • A thick, creamy soup or stew. 

  • A stew, particularly fish or seafood, not necessarily thickened. 

verb
  • To make (seafood, etc.) into chowder. 

congee

noun
  • A type of thick rice porridge or soup, sometimes prepared with vegetables and/or meat. 

  • Leave, formal permission for some action, (originally and particularly) 

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