Tonal Behavior as of Areal and Typological Concerns: Centering on the Sinitic and Kam-Tai Languages in Lingnan

Abstract

From the perspective of areal linguistics, this paper examines the similarities in tonal behavior between Sinitic and Kam-Tai, the two most populous language groups in Lingnan. By relying on some frameworks for investigating tone systems, i.e., tone-box theories, which largely involve the evolution of tones, the following duplicating patterns and paths of diffusion of areal features are identified. (1) The secondary tonal split conditioned by vowel length on checked syllables, as well as the secondary tonal split of the upper-register tones conditioned by the laryngeal features of initial consonants, both originated in Kam-Tai languages and have diffused into some neighboring Sinitic languages. (2) The pattern of the secondary tonal split of the lower-register tones conditioned by laryngeal features of the initial consonants originated in northern authoritative Sinitic languages and spread widely among different subgroups of Sinitic languages; its diffusion into the Kam-Tai languages is limited to the lexical category of loanwords. (3) The upper-register tones associated with sonorant initials found in Lingnan Sinitic languages are suggested to be of a Kam-Tai origin trait. Further, their underlying areal typological rules are also summarized, concentrating on different upper limits for the possible secondary tonal split in the Sinitic and Kam-Tai languages, which were determined by the historically distinct laryngeal features of the initial consonants of the two language groups.