bagging vs hopsack

bagging

noun
  • Cloth or other material for bags. 

  • peak bagging 

  • bootstrap aggregating 

  • Use of BVM to ventilate a patient. 

  • The act of putting anything into a bag. 

hopsack

noun
  • A coarse, loosely-woven clothing fabric. 

  • A hemp sack used for holding hops. 

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