Where does “ម៉ាឡេស៊ី” come from?

ម៉ាឡេស៊ី (Khmer) comes from French Malaisie, from French malais, from English Malay, from Malay Melayu, from Malay Malayu, from Old Javanese layū, from Proto-Sunda-Sulawesi lariw, from Proto-Malayo-Polynesian laʀiw.