batt vs upholstery

batt

noun
  • Pieces of fabric or fibre used for stuffing; as for batting or insulation 

  • A shoe. 

upholstery

noun
  • The materials used in upholstering furniture. 

  • The craft or business of upholstering furniture. 

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