Where does “kuparihome” come from?

kuparihome (Finnish) comes from Finnish home, from Proto-Finnic homeh, from Proto-Germanic swammaz, from Proto-Indo-European swombʰ- — sponge, tree-fungus, swamp; sponge; tree-fungus;...

Ancestry of “kuparihome”, step by step

kuparihome traces back through two separate lines of ancestry.

via Finnish home

StepLanguageWordMeaning
1Finnishhomemildew, mold
2Proto-Finnichomehmildew, mold
3Proto-Germanicswammazsponge; fungus, mushroom; swamp
4Proto-Indo-Europeanswombʰ-sponge, tree-fungus, swamp; sponge; tree-fungus;...

via Finnish kupari

StepLanguageWordMeaning
1Finnishkuparicopper
2Old Swedishkoppar—
Every word from Proto-Indo-European swombʰ- →Every word from Proto-Germanic swammaz →Every word from Proto-Finnic homeh →