buckram vs percale

buckram

noun
  • A coarse cloth of cotton, linen or hemp, stiffened with size or glue, used in bookbinding to cover and protect the books, in garments to keep them in the form intended, and for wrappers to cover merchandise. 

  • A plant, Allium ursinum, also called ramson, wild garlic, or bear garlic. 

verb
  • To stiffen with or as if with buckram. 

percale

noun
  • A fine, closely woven fabric, made from cotton, polyester or a mix of these, and used for sheets and clothing. 

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