alehoof vs cat's-foot

alehoof

noun
  • ground-ivy 

cat's-foot

noun
  • Synonym of ground ivy (Glechoma hederacea). 

  • Synonym of mountain cudweed (Antennaria dioica). 

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

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