batten down vs weatherstrip

batten down

verb
  • To prepare for adversity. 

  • To close or make watertight, referring to hatches and cargo. 

  • To secure. 

weatherstrip

verb
  • To apply such a strip. 

noun
  • A narrow piece of material used to prevent cold air from entering a building through the edge of a window or a door. 

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