buckram vs curd

buckram

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

  • 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. 

verb
  • To stiffen with or as if with buckram. 

curd

noun
  • The edible flower head of certain brassicaceous plants. 

  • The coagulated part of any liquid. 

  • The part of milk that coagulates when it sours or is treated with enzymes; used to make cottage cheese, dahi, etc. 

verb
  • To form curd; to curdle. 

  • To cause to coagulate or thicken; to cause to congeal; to curdle. 

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