Where does “เก้าสิบ” come from?

เก้าสิบ (Thai) comes from Thai เก้า, from Proto-Tai *kɤwꟲ, from Middle Chinese 九, from Old Chinese 九, from Proto-Sino-Tibetan d/s-kəw — nine.

เก้าสิบ (Thai): 90

Definitions

  1. 90

Ancestry of “เก้าสิบ”, step by step

เก้าสิบ traces back through two separate lines of ancestry.

via Thai เก้า

StepLanguageWordMeaning
1Thaiเก้า9; nine
2Proto-Tai*kɤwꟲnine
3Middle Chinese九—
4Old Chinese九—
5Proto-Sino-Tibetand/s-kəwnine

via Thai สิบ

StepLanguageWordMeaning
1Thaiสิบ10; ten

Words derived from “เก้าสิบ”

Every word from Proto-Sino-Tibetan d/s-kəw →Every word from Old Chinese 九 →Every word from Middle Chinese 九 →