purlieu vs watering hole

purlieu

noun
  • The ground on the edges of a forest, especially when partly subject to the same forest laws concerning game hunting etc. 

  • The outskirts of any place; an adjacent district; the environs or neighborhood. 

watering hole

noun
  • A bar or other local drinking establishment. 

  • A depression in which water collects and where animals come to drink. 

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