linoleum vs tenting

linoleum

noun
  • An inexpensive waterproof covering used especially for floors, made from solidified linseed oil over a burlap or canvas backing, or from its modern replacement, polyvinyl chloride. 

tenting

noun
  • Material used for making tents. 

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