alpenstock vs paling

alpenstock

noun
  • A stout adjustable walking stick with a metal point, used by mountain climbers and walkers in hilly or uneven terrain. 

paling

noun
  • A pointed stick used to make a fence. 

  • A fence made of galvanized sheeting. 

  • A fence made of palings. 

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