Where does “saippuavaahto” come from?

saippuavaahto (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.

saippuavaahto (Finnish): soap foam

Definitions

  1. soap foam

Ancestry of “saippuavaahto”, step by step

saippuavaahto 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 saippua

StepLanguageWordMeaning
1Finnishsaippuasoap
2Proto-Germanicsaipǭsoap
3Proto-Indo-Europeanseyb-to pour, leak, trickle; to pour out, trickle,...
Every word from Proto-Indo-European -tus →Every word from Proto-Germanic -þuz →Every word from Proto-Germanic þwahtuz →