Where does “sekapolymeeri” come from?

sekapolymeeri (Finnish) comes from Finnish seka-, from Proto-Finnic seka — mixed.

Ancestry of “sekapolymeeri”, step by step

StepLanguageWordMeaning
1Finnishseka-mixed; cross-
2Proto-Finnicsekamixed
Every word from Proto-Finnic seka →Every word from Finnish seka- →