Where does “kahdeksaskymmeneskahdes” come from?

kahdeksaskymmeneskahdes (Finnish) comes from Finnish kahdeksaskymmenes, from Finnish kahdeksas, from Proto-Finnic kakteksac, from Proto-Finnic kakteksa, from Proto-Finnic kakci, from Proto-Uralic *kakta.

Ancestry of “kahdeksaskymmeneskahdes”, step by step

kahdeksaskymmeneskahdes traces back through two separate lines of ancestry.

via Finnish kahdeksaskymmenes

StepLanguageWordMeaning
1Finnishkahdeksaskymmeneseightieth
2Finnishkahdeksaseighth
3Proto-Finnickakteksaceighth
4Proto-Finnickakteksaeight
5Proto-Finnickakcitwo
6Proto-Uralic*kakta—

via Finnish kahdes

StepLanguageWordMeaning
1Finnishkahdessecond, two
2Finnishkaksitwo
Every word from Proto-Uralic *kakta →Every word from Proto-Finnic kakci →Every word from Proto-Finnic kakteksa →