Ishmaelite vs Muslim

Ishmaelite

noun

  • An Arab Muslim. 

  • An outcast. 

  • Any descendant of Ishmael. 

Muslim

noun

  • A person who is a follower and believer of Islam. 

adj

  • Being or relating to a believer of Islam. 

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