Where does “ลงชื่อ” come from?

ลงชื่อ (Thai) comes from Thai ชื่อ, from Proto-Tai ɟɤːᴮ, from Middle Chinese 字 — letter, symbol, character; character.

ลงชื่อ (Thai): to sign: to affix a signature (to)

Definitions

  1. to sign: to affix a signature (to)

Ancestry of “ลงชื่อ”, step by step

ลงชื่อ traces back through two separate lines of ancestry.

via Thai ชื่อ

StepLanguageWordMeaning
1Thaiชื่อname; title; dignity; glory; honour; reputation
2Proto-Taiɟɤːᴮname
3Middle Chinese字letter, symbol, character; character

via Thai ลง

StepLanguageWordMeaning
1Thaiลงto descend; to cause to descend; to lower; to...
2Proto-Tain̩.loŋᴬto descend
Every word from Middle Chinese 字 →Every word from Proto-Tai ɟɤːᴮ →Every word from Thai ชื่อ →