“The Malay Saiyids in the North of Perak claims to be descendent from the guru of the first Sultan, Sheikh Hussein Bin Jamaluddin, who came from Hadramaut. The daughter of a Saiyid in Ulu Perak has the title of Siti, and her son, by a man not a Saiyid, is addressed as Mir, evidently a corruption of the Arabic amir*. Megat is a title given to a man who is of royal descent on his mother’s side, his father being a commoner. I have elsewhere suggested the possible derivation of this word from Magadha (sanskrit), the son of a Vaeiya by a Kshatriya woman. The sons of Megat bear the same title, his daughters are called Putri. The son of a Putri by a man below her in rank is addressed as Pra Tun. The children of the four Chiefs of the first rank, and their descendants, have the title of Wan.”
[*]The English word Admiral is, probably, derived from the Arabic amiru-l-bahr, Lord of the Sea.
Reference: Maxwell W (ed). Notes and Queries. Malaysian Branch Royal Asiatic Society (MBRAS) Reprint 15. 1997. p83.