briar vs hinterland

briar

noun
  • Anything sharp or unpleasant to the feelings. 

  • The white heath (Erica arborea), a thorny Mediterranean shrub. 

  • Any of many plants with thorny stems growing in dense clusters, such as many in the Rosa, Rubus, and Smilax genera. 

  • A pipe for smoking, made from the roots of that shrub. 

hinterland

noun
  • Anything vague or ill-defined, especially something that is ill understood. 

  • The land immediately next to, and inland from, a coast. 

  • A remote or undeveloped area, a backwater. 

  • The rural territory surrounding an urban area, especially a port. 

  • That which is unknown or unexplored about someone. 

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