SOMSONGE Burusphat. 2013. The Language Shift in Progress of Thai Song. Journal of the Southeast Asian Linguistics Society (JSEALS) 6:18-34 Received 30/6/2012, revised text accepted 24/9/2012, published February 2013 ISSN: 1836-6821 | Website: http://jseals.org | Managing Editor Dr Paul Sidwell URL: http://hdl.handle.net/1885/9719 Copyright vested in the author; released under Creative Commons Attribution Licence www.jseals.org | Volume 6 | 2013 | Asia-Pacific Linguistics THE LANGUAGE SHIFT IN PROGRESS OF THAI SONG Somsonge Burusphat Research Institute for Languages and Cultures of Asia Mahidol University, Thailand <
[email protected] > Abstract The research question of this paper is: To what extent has the Thai Song language been influenced by the Thai language? The finding of this question is obtained by a sociolinguistic study of phonological variation and lexical replacement among Thai Song speakers of three age groups: old generation (over 60), middle generation (35-55), and young generation (18-30). Thai Song speakers residing at two locations in Nakhon Pathom province are selected as a case study of Thai Song in the western region of Thailand. The study of phonological variation reveals that Thai Song has progressively shifted to Thai in the speech of middle and young generations. The study of lexical replacement shows that young generation speakers use fewer Thai Song words than the older generations. Key words: language contact, historical phonology, language shift, Thai Song, Thai Song Dam, Tai Dam, Lao Song ISO 639-3 language codes: soa, blt 1. Introduction Previous studies have shown that in the seven provinces of the western region of Thailand, namely, Kanchanaburi, Ratchaburi, Phetchaburi, Suphanburi, Nakhon Pathom, Samut Sakhon, and Samut Songkhram, there are six major Lao ethnic groups, which are, Lao Song/Thai Song, Lao Yuan, Lao Phuan, Lao Khrang, Lao Vieng and Lao Tay.