Where does “สองฤดู” come from?

สองฤดู (Thai) comes from Thai ฤดู, from Sanskrit ऋतु, from Proto-Indo-Iranian Hr̥túš, from Proto-Indo-European h₂ér-tus ~ h₂r̥-téw-s, from Proto-Indo-European h₂er- — to fit, to fix, to put together.

สองฤดู (Thai): poinsettia

Definitions

  1. poinsettia

Ancestry of “สองฤดู”, step by step

สองฤดู traces back through two separate lines of ancestry.

via Thai ฤดู

StepLanguageWordMeaning
1Thaiฤดูmoment; occasion; opportunity; period season;...
2Sanskritऋतुany settled point of time, fixed time, time...
3Proto-Indo-IranianHr̥túšfixed point of time, period, epoch; fixed order,...
4Proto-Indo-Europeanh₂ér-tus ~ h₂r̥-téw-s
5Proto-Indo-Europeanh₂er-to fit, to fix, to put together

via Thai สอง

StepLanguageWordMeaning
1Thaiสอง2
2Proto-Taisoːŋᴬtwo
3Middle Chinese
Every word from Proto-Indo-European h₂er-Every word from Proto-Indo-European h₂ér-tus ~ h₂r̥-téw-sEvery word from Proto-Indo-Iranian Hr̥túš