Where does “kahdentuminen” come from?

kahdentuminen (Finnish) comes from Finnish kahdentua, from Finnish kahdentaa, from Finnish kaksi, from Proto-Finnic kakci, from Proto-Uralic *kakta.

Ancestry of “kahdentuminen”, step by step

StepLanguageWordMeaning
1Finnishkahdentuato be duplicated; to bifurcate
2Finnishkahdentaato double; to duplicate; to geminate
3Finnishkaksitwo
4Proto-Finnickakcitwo
5Proto-Uralic*kakta—
Every word from Proto-Uralic *kakta →Every word from Proto-Finnic kakci →Every word from Finnish kaksi →