Where does “homettua” come from?

homettua (Finnish) comes from Finnish homettaa, 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 “homettua”, step by step

StepLanguageWordMeaning
1Finnishhomettaato make moldy
2Finnishhomemildew, mold
3Proto-Finnichomehmildew, mold
4Proto-Germanicswammazsponge; fungus, mushroom; swamp
5Proto-Indo-Europeanswombʰ-sponge, tree-fungus, swamp; sponge; tree-fungus;...
Every word from Proto-Indo-European swombʰ- →Every word from Proto-Germanic swammaz →Every word from Proto-Finnic homeh →