Where does “เส้นทแยงมุม” come from?

เส้นทแยงมุม (Thai) comes from Thai มุม, from Khmer មុម, from Proto-Mon-Khmer mum — corner; angle.

เส้นทแยงมุม (Thai): diagonal

Definitions

  1. diagonal

Ancestry of “เส้นทแยงมุม”, step by step

เส้นทแยงมุม traces back through 3 separate lines of ancestry.

via Thai มุม

StepLanguageWordMeaning
1Thaiมุมcorner; angle
2Khmerមុមcorner; angle
3Proto-Mon-Khmermumcorner; angle

via Thai เส้น

StepLanguageWordMeaning
1Thaiเส้นline; anything that is long and thin: hair, rope,...
2Proto-Tai*selꟲ

via Thai ทแยง

StepLanguageWordMeaning
1Thaiทแยงdiagonal
Every word from Proto-Mon-Khmer mumEvery word from Khmer មុមEvery word from Thai มุม