cat's-foot vs chump

cat's-foot

noun
  • Synonym of cat's-paw: a foot of a cat; (figurative, obsolete) a person used unwittingly or through trickery by another. 

  • Synonym of mountain cudweed (Antennaria dioica). 

  • Synonym of ground ivy (Glechoma hederacea). 

chump

noun
  • An incompetent person, a blockhead; a loser. 

  • The thick end, especially of a piece of wood or of a joint of meat. 

  • A gullible person; a sucker; someone easily taken advantage of; someone lacking common sense. 

How often have the words cat's-foot and chump occurred in a corpus of books? (source: Google Ngram Viewer )