Where does “loppukahdennus” come from?

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

Ancestry of “loppukahdennus”, step by step

loppukahdennus traces back through two separate lines of ancestry.

via Finnish kahdennus

StepLanguageWordMeaning
1Finnishkahdennusgemination
2Finnishkahdentaato double; to duplicate; to geminate
3Finnishkaksitwo
4Proto-Finnickakcitwo
5Proto-Uralic*kakta—

via Finnish loppu

StepLanguageWordMeaning
1Finnishloppuend, ending, finish, conclusion; The End; the...
2Proto-Finnicloppuend, ending
3Proto-Finnicloppi(inside) corner
Every word from Proto-Uralic *kakta →Every word from Proto-Finnic kakci →Every word from Finnish kaksi →