Where does “เดือน ๑๒” come from?

เดือน ๑๒ (Thai) comes from Thai เดือน, from Proto-Tai ɓlɯənᴬ — moon; month; moon.

เดือน ๑๒ (Thai): The month of the cutters' star (corresponding to Pleiades), being the twelfth month of the Thai lunar calendar

Definitions

  1. The month of the cutters' star (corresponding to Pleiades), being the twelfth month of the Thai lunar calendar

Ancestry of “เดือน ๑๒”, step by step

เดือน ๑๒ traces back through two separate lines of ancestry.

via Thai เดือน

StepLanguageWordMeaning
1Thaiเดือนmonth; moon
2Proto-Taiɓlɯənᴬmoon; month; moon

via Thai ๑๒

StepLanguageWordMeaning
1Thai๑๒12
Every word from Proto-Tai ɓlɯənᴬEvery word from Thai เดือน