Where does “การพยากรณ์” come from?

การพยากรณ์ (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 “การพยากรณ์”, step by step

การพยากรณ์ 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 พยากรณ์

StepLanguageWordMeaning
1Thaiพยากรณ์to forecast; to predict
2Sanskritव्याकरणseparation, distinction, discrimination;...
3Sanskritआ-up, upon, on
4Sanskritseparated form of आ-; With senses determined by...
5Proto-Indo-Iranian*HáH
Every word from Proto-Indo-European kʷer-Every word from Sanskrit कृEvery word from Sanskrit कार