Where does “ใต้ดิน” come from?

ใต้ดิน (Thai) comes from Thai ใต้, from Thai ฝ่า, from Thai ละออง, from Thai ธุลี, from Sanskrit धूलि, from Proto-Indo-Aryan dʰuHliṣ, from Proto-Indo-Iranian dʰuHliš, from Proto-Indo-European dʰuh₂lis — smoke; mist, haze.

ใต้ดิน (Thai): underground; subterranean; concealed; illegal

Definitions

  1. underground; subterranean; concealed; illegal

Ancestry of “ใต้ดิน”, step by step

ใต้ดิน traces back through two separate lines of ancestry.

via Thai ใต้

StepLanguageWordMeaning
1Thaiใต้south; south; southern; southward; inferior;...
2Thaiฝ่าpalm of the hand; sole of the foot; to go...
3Thaiละอองfine particles; dust; powder
4Thaiธุลีdust
5Sanskritधूलिdust, powder, pollen
6Proto-Indo-AryandʰuHliṣ
7Proto-Indo-IraniandʰuHliš
8Proto-Indo-Europeandʰuh₂lis
9Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via Thai ดิน

StepLanguageWordMeaning
1Thaiดินearth; ground; soil; land
2Proto-Taiɗinᴬearth

Words derived from “ใต้ดิน

Every word from Proto-Indo-European dʰewh₂-Every word from Proto-Indo-European dʰuh₂lisEvery word from Proto-Indo-Iranian dʰuHliš