Where does “ลงไป” come from?

ลงไป (Thai) comes from Thai ไป, from Proto-Tai pajᴬ — to go.

ลงไป (Thai): to go down, go downward

Definitions

  1. to go down, go downward

Ancestry of “ลงไป”, step by step

ลงไป traces back through two separate lines of ancestry.

via Thai ไป

StepLanguageWordMeaning
1Thaiไปto go; to move (away from the speaker); to leave; to depart
2Proto-Taipajᴬto go

via Thai ลง

StepLanguageWordMeaning
1Thaiลงto descend; to cause to descend; to lower; to...
2Proto-Tain̩.loŋᴬto descend
Every word from Proto-Tai pajᴬ →Every word from Thai ไป →