Where does “ฤดูร้อน” come from?

ฤดูร้อน (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.

ฤดูร้อน (Thai): summer; hot season

Definitions

  1. summer; hot season

Ancestry of “ฤดูร้อน”, step by step

ฤดูร้อน 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 ร้อน

StepLanguageWordMeaning
1Thaiร้อนhot; summer
2Proto-Tairwuːlᶜhot
Every word from Proto-Indo-European h₂er-Every word from Proto-Indo-European h₂ér-tus ~ h₂r̥-téw-sEvery word from Proto-Indo-Iranian Hr̥túš