cronk vs niff

cronk

verb

  • To honk like a goose. 

noun

  • A hill or barrow. 

  • The honking sound of a goose. 

niff

verb

  • To smell bad; to stink. 

noun

  • A bad smell. 

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