Where does “kalvovaahto” come from?

kalvovaahto (Finnish) comes from Finnish vaahto, from Proto-Finnic vakto, from Proto-Germanic þwahtuz, from Proto-Germanic -þuz, from Proto-Indo-European -tus — Derives action nouns from verb roots.

kalvovaahto (Finnish): film forming foam, light water

Definitions

  1. film forming foam, light water

Ancestry of “kalvovaahto”, step by step

kalvovaahto traces back through two separate lines of ancestry.

via Finnish vaahto

StepLanguageWordMeaning
1Finnishvaahtofoam; head; mousse
2Proto-Finnicvaktofoam
3Proto-Germanicþwahtuzwashing, laundry
4Proto-Germanic-þuzForms result nouns from verb roots, usually from...
5Proto-Indo-European-tusDerives action nouns from verb roots

via Finnish kalvo

StepLanguageWordMeaning
1Finnishkalvofilm; membrane; diaphragm
2Proto-Finnickalvomembrane
3Proto-Uralickaĺwɜmembrane
Every word from Proto-Indo-European -tus →Every word from Proto-Germanic -þuz →Every word from Proto-Germanic þwahtuz →