Where does “ສີ່ສິບ” come from?

ສີ່ສິບ (Lao) comes from Lao ສີ່, from Proto-Tai siːᴮ, from Middle Chinese 四, from Proto-Sino-Tibetan *pV-lij — four.

ສີ່ສິບ (Lao): forty

Definitions

  1. forty

Ancestry of “ສີ່ສິບ”, step by step

ສີ່ສິບ traces back through two separate lines of ancestry.

via Lao ສີ່

StepLanguageWordMeaning
1Laoສີ່four
2Proto-Taisiːᴮfour
3Middle Chinese四—
4Proto-Sino-Tibetan*pV-lijfour

via Lao ສິບ

StepLanguageWordMeaning
1Laoສິບten
2Middle Chinese十—
Every word from Proto-Sino-Tibetan *pV-lij →Every word from Middle Chinese 四 →Every word from Proto-Tai siːᴮ →