There is no definitive account of who a Malay is. Historically however, Malays are known to have originated from what is known as the Nusantara region that includes Singapore, Malaysia, Indonesia, Brunei, Southern Thailand and Southern Philippines. While possessing their own languages and dialects, they generally speak Malay and in more modern times, are adherents of Islam.
So…
Banjarese = Malay
Acehnese = Malay
Javanese = Malay
Bugis = Malay
Boyanese = Malay
And of course the Malays from Johor or Malaysia are definitely considered Malays.
Chinese Muslims not equal to Malay.
Indian Muslims not equal to Malay.
Pakistani Muslims not equal to Malay.
Tak Melayu Hilang Di Dunia
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