eidgah vs surau

eidgah

noun
  • An open-air enclosure used for Eid prayers on certain special occasions. 

surau

noun
  • A small room in any public place where Muslims pray. 

  • A small mosque or other Islamic assembly building in parts of Sumatra and the Malay peninsula. 

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