Nominalizations and its grammaticalization in standard Thai

The focus of this study is on the function and grammaticalization of nominalizations in Thai and the nominalization categories and nominalizing strategies in Thai are described. The Thai language exhibits a composite of derivational and clausal nominalizations marked with three nominalizers: kaan 1 derives nouns or nominalized clauses from lexical verbs and relative or complement clauses; khwaam 1 derives nouns from lexical verbs and adjectives; and kaan 1 thii 3 is used for clauses. The current study posits diachronic developments for nominalizers and addresses related issues. It is concluded that nominalizers kaan 1 and khwaam 1 were originally lexical nouns meaning ‘work’ and ‘matter’. The essential features of the use of nominalizations have remained constant, but certain developments have occurred, which include lexical nominalization to clausal nominalization and the emergence of a new nominalizer, kaan 1 thii 3 . It is found that nominalizers kaan 1 , khwaam 1 and kaan 1 thii 3 are basically in complementary distribution, and language internal evolution and external contact are the primary motivations for nominalization in Thai.