Semelai is a previously undescribed and endangered Aslian (Mon-Khmer) language of the Malay Peninsula. This book - the first in-depth description of an Aslian language - provides a comprehensive reference grammar of Semelai. Semelai intertwines two types of morphological system: a concatenative system of prefixes, suffixes and a circumfix - acquired through extended contact with Malay - and a n…