puccoon vs tetterwort

puccoon

noun
  • The red pigment (dye) obtained from these plants. 

  • Any one of several plants yielding a red pigment which is used by the North American Indians, such as the bloodroot and two species of Lithospermum, Lithospermum hirtum and Lithospermum canescens. 

tetterwort

noun
  • A plant used as a remedy for tetter, Chelidonium majus 

  • Sanguinaria canadensis, the bloodroot. 

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