Where does “การรุก” come from?

การรุก (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 “การรุก”, step by step

การรุก 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 รุก

StepLanguageWordMeaning
1Thaiรุกto enter wrongfully or forcefully: to invade, to...
2Old Khmerរុក—
Every word from Proto-Indo-European kʷer- →Every word from Sanskrit कृ →Every word from Sanskrit कार →