Proto-Kra


Proto-Kra is the reconstructed ancestor of the Kra languages. It was reconstructed in 2000 by Weera Ostapirat in his Ph.D. dissertation.

Lower-level reconstructions

Ostapirat provided preliminary phonological reconstructions for several lower-level groupings before attempting a reconstruction of Proto-Kra.

Consonants

Proto-Kra has a total of 32 consonants, seven of which can occur as syllable finals.
Marc Miyake proposes alternative reconstructions for Ostapirat's Proto-Kra retroflex consonants, suggesting that many of them were actually non-retroflexes that had been influenced by pre-syllables. Some examples of Miyake's revised Proto-Kra reconstructions are provided below.
Additionally, Miyake revises Ostapirat's Proto-Kra *pwl- as *CV-pl-, *bwl- as *CV-bl-, *m-pl- as *pl-, *-l- as *V-l-, *ʈ-l- as k-l-, and *ɖ-l- as *-l-.

Vowels

Proto-Kra has a total of 6 vowels.
Proto-Kra has 4 diphthongs, which are not found in closed syllables.
Proto-Kra had an A–B–C–D tonal system typical of other Tai–Kadai languages. The tonal descriptions below are from Ostapirat.
  1. *A: *A is one of the most common tones.
  2. *B: *B and *D are phonetically similar, as reflexes of tone *D are often the same as those of *B. This regularly occurs in all Kra languages except for Qabiao.
  3. *C: *C is usually accompanied by glottal constriction and may have originally had a creaky or tense laryngeal quality. Some Gelao varieties and Yalang Buyang display the same reflex for *B and *C.
  4. *D: *D is the only tone to occur exclusively in closed syllables.
The following table of phonetic characteristics of Proto-Kra tones was adapted from Ostapirat.
*A*B*C*D
Type of finalsonorants, vowelslax larynx tense larynxstops
Voicingvoicedunvoicedunvoicedunvoiced
Vocal cordsvibratingwide openclosedclosed
Vowel durationlongmediumshortmedium

Lexicon

Below are reconstructed Proto-Kra forms from Ostapirat.
;Body parts and bodily functions
;Animals
;Plants
;Nature
;Material culture
;Kinship and pronouns
;Adjectives
;Verbs
;Space, time, and deictics
;Numerals