chancel vs mosque

chancel

noun
  • The space around the altar in a church, often enclosed, for use by the clergy and the choir. In medieval cathedrals the chancel was usually enclosed or blocked off from the nave by an altar screen. 

mosque

noun
  • A place of worship for Muslims, often having at least one minaret; a masjid. 

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