Where does “ตกเขียว” come from?

ตกเขียว (Thai) comes from Thai เขียว, from Proto-Tai xiəwᴬ — green.

ตกเขียว (Thai): forward buying of paddy or other crop fields from farmers by paying a deposit; advancing money against a growing crop

Definitions

  1. forward buying of paddy or other crop fields from farmers by paying a deposit; advancing money against a growing crop

Ancestry of “ตกเขียว”, step by step

ตกเขียว traces back through two separate lines of ancestry.

via Thai เขียว

StepLanguageWordMeaning
1Thaiเขียวgreen; indigo; having an unfavourable smell like...
2Proto-Taixiəwᴬgreen

via Thai ตก

StepLanguageWordMeaning
1Thaiตกto fall; to drop
2Proto-Taitokᴰto drop
Every word from Proto-Tai xiəwᴬ →Every word from Thai เขียว →