cacolet vs offal

cacolet

noun
  • One of a pair of chairs or litters mounted on a pack animal (horse, mule, camel) 

  • A single litter mounted on a pack animal. 

offal

noun
  • The internal organs of an animal, used as food. 

  • That which is thrown away as worthless or unfit for use; refuse; rubbish. 

  • A dead body; carrion. 

  • A by-product of the grain milling process, which may include bran, husks, etc. 

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