Where does “kermikeidas” come from?

kermikeidas (Finnish) comes from Finnish keidas, from Proto-Germanic skaidaz.

Ancestry of “kermikeidas”, step by step

kermikeidas traces back through two separate lines of ancestry.

via Finnish keidas

StepLanguageWordMeaning
1Finnishkeidasoasis
2Proto-Germanicskaidaz—

via Finnish kermi

StepLanguageWordMeaning
1Finnishkermimembrane flexible covering whose primary function is to exclude water
Every word from Proto-Germanic skaidaz →Every word from Finnish keidas →