buckram vs interlining

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. 

interlining

noun
  • A cloth lining between the outer and inner layers of a garment. 

  • Correction or alteration by writing between the lines; interlineation. 

  • The scheduling of vehicles to operate more than one route, or the selling of tickets for a trip across multiple carriers 

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