Dervish vs mendicant

Dervish

noun
  • A member of a Sufi Muslim ascetic fraternity of mendicant friars. 

  • A citizen or inhabitant of Darawiish (circa 1895–1920 C.E.), the Dhulbahante anti-colonial polity geographically corresponding with Khaatumo. 

mendicant

noun
  • A religious friar, forbidden to own personal property, who begs for a living. 

  • A pauper who lives by begging. 

adj
  • Depending on alms for a living. 

  • Of or pertaining to a beggar. 

  • Of or pertaining to a member of a religious order forbidden to own property, and who must beg for a living. 

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