Local folklore has it that Langkawi derived its name from the eagle or "helang" as it is known in the Malay language. "Lang" for short and in old Malay, "kawi" denotes reddish brown; hence, Langkawi simply means reddish brown eagle. Where once, a group of 99 islands lay under a curse of a wrongly accused princess, there is today a new beginning, a new light, and as result a new budding and thriving holiday hideaway. The Langkawi you see today has been transformed almost beyond recognition. This is the legendary island where now major international businessmen meet to form new ventures and conclude deals whilst relaxing. The curse that lasted for seven generations can surely be said to have been lifted.
(from http://www.marimari.com/content/malaysia/popular_places/islands/langkawi/langkawi.html