Where does “koestaminen” come from?

koestaminen (Finnish) comes from Finnish koestaa, from Finnish koe, from Finnish kokea, from Proto-Finnic kokedak, from Proto-Uralic koke-, from Proto-Indo-European h₃ekʷ- — to see; eye.

Ancestry of “koestaminen”, step by step

StepLanguageWordMeaning
1FinnishkoestaaTo test
2Finnishkoeexperiment; trial, test; examination, test, exam
3Finnishkokeato experience, undergo; to suffer; ~ verkko = to...
4Proto-Finnickokedakto (go) take a look at
5Proto-Uralickoke-see
6Proto-Indo-Europeanh₃ekʷ-to see; eye
Every word from Proto-Indo-European h₃ekʷ- →Every word from Proto-Uralic koke- →Every word from Proto-Finnic kokedak →