dargah vs marabout

dargah

noun
  • A shrine associated with the grave of a Muslim saint or similar religious figure. 

marabout

noun
  • The tomb or shrine of such a person. 

  • A Muslim holy man or mystic, especially in parts of North Africa. 

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