Where does “การร้อนรน” come from?

การร้อนรน (Thai) comes from Thai การ, from Pali kāra, from Sanskrit कार, from Sanskrit कृ, from Proto-Indo-European kʷer- — to do; to make; to build.

Ancestry of “การร้อนรน”, step by step

การร้อนรน traces back through two separate lines of ancestry.

via Thai การ

StepLanguageWordMeaning
1Thaiการwork; matter; task; affair; prefixed to nouns to...
2Palikāradeed; doing, manner; production, application
3Sanskritकारgain, prize, booty; contest, war; an act, action
4Sanskritकृto make
5Proto-Indo-Europeankʷer-to do; to make; to build

via Thai ร้อนรน

StepLanguageWordMeaning
1Thaiร้อนรนto be or become restless as a result of great anxiety; to fidget; to be on pins and needles
2Thaiร้อนhot; summer
3Proto-Tairwuːlᶜhot
Every word from Proto-Indo-European kʷer-Every word from Sanskrit कृEvery word from Sanskrit कार