Where does “การทดรอง” come from?

การทดรอง (Thai) comes from Thai ทดรอง, from Thai ทด, from Pali paṇḍita, from Sanskrit पण्डित, from Sanskrit -इत, from Proto-Indo-Iranian -tás, from Proto-Indo-European -tós — Creates verbal adjectives from verb stems.

Ancestry of “การทดรอง”, step by step

การทดรอง traces back through two separate lines of ancestry.

via Thai ทดรอง

StepLanguageWordMeaning
1Thaiทดรองto advance: to supply or pay in expectation of reimbursement
2Thaiทดto irrigate; to carry; to compensate; to repay
3Palipaṇḍitawise man
4Sanskritपण्डितlearned, wise, shrewd, clever, skilful in,...
5Sanskrit-इतforms adjectives from nouns: -ed, having, furnished with
6Proto-Indo-Iranian-tásCreates verbal adjectives from verb stems
7Proto-Indo-European-tósCreates verbal adjectives from verb stems

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
Every word from Proto-Indo-European -tósEvery word from Sanskrit -इतEvery word from Sanskrit पण्डित