Where does “สี่” come from?
สี่ (Thai) comes from Proto-Tai siːᴮ, from Middle Chinese 四, from Proto-Sino-Tibetan *pV-lij.
สี่ (Thai): 4; four
Ancestry of “สี่”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Tai | siːᴮ | four |
| 2 | Middle Chinese | 四 | — |
| 3 | Proto-Sino-Tibetan | *pV-lij | — |