Just saw a word list of reconstructed Proto-Kra-dai, which is a language family that includes Thai.
| Gloss | Proto-Kra–Dai |
|---|---|
| blood | *pɤlaːc |
| bone | *Kudɤːk |
| ear | *qɤrɤː |
| eye | *maTaː |
| hand | *(C)imɤː |
| nose | *(ʔ)idaŋ |
| tongue | *(C)əmaː |
| tooth | *lipan |
| dog | *Kamaː |
| fish | *balaː |
| horn | *paquː |
| louse | *KuTuː |
| fire | *(C)apuj |
| stone | *KaTiːl |
| star | *Kadaːw |
| water | *(C)aNam |
| I (1.SG) | *akuː |
| Thou (2.SG) | *isuː; amɤː |
| one | *(C)itsɤː |
| two | *saː |
| die | *maTaːj |
| name | *(C)adaːn |
| full | *pətiːk |
| new | *(C)amaːl |
| ‘thin’ | *C-báːŋ |
| ‘bone’ | *Cudə́ːk |
| ‘boat’ | *Cuɖáː |
| ‘borrow’ | *C-ɟáːm |
| ‘village’ | *Cəˀbáːnʔ |
| ‘winnow basket’ | *Cəˀdóŋʔ |
| ‘to stand’ | *Cəˀɟún |
| ‘dog’ | *kʰ[u]máː |
| ‘ditch’ | *[t]-m̥ˠáːŋ |
| ‘ant’ | *r-móȶ |
| ‘bear’ | *kəˀmˠúj |
| ‘thick’ | *tsəˀnáː |
| ‘cold’ | *kəˀȵít |
| ‘stupid’ | *Cəˀŋáːŋh |
| ‘gills’ | *Cəˀŋˠáːk |
| ‘taro’ | *pəˀrˠáːk |
| ‘moan’ | *gəˀráːŋ |
| ‘hungry’ | *məˀjáːk |
| ‘stupid’ | *Cəˀwáːʔ |
I mean, most of those are almost exactly the same as Proto-Austronesian…
| Gloss | Proto-Kra–Dai | Proto-Austronesian |
|---|---|---|
| blood | *pɤlaːc | *biRaq |
| eye | *maTaː | *maCa |
| hand | *(C)imɤː | *qa-lima |
| tongue | *(C)əmaː | *Sema |
| tooth | *lipan | *ŋipen |
| louse | *KuTuː | *kuCux |
| fire | *(C)apuj | *Sapuy |
| water | *(C)aNam | *daNum |
| I (1.SG) | *akuː | *aku |
| Thou (2.SG) | *isuː; amɤː | *i-kaSu |
| one | *(C)itsɤː | *isa |
| two | *saː | *duSa |
| die | *maTaːj | *ma-aCay |
| ‘borrow’ | *C-ɟáːm | *Sezam |
| ‘bear’ | *kəˀmˠúj | *Cumay |
| ‘taro’ | *pəˀrˠáːk | *biRaq |
So many cognates. Although, the two seem to have split before boat was invented, as it’s *Cuɖáː in Proto-Kra-Dai and *qabaŋ in Proto-Austronesian.