Where does “pintavaahto” come from?

pintavaahto (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.

pintavaahto (Finnish): head, foam foam that forms on top of beverages

Definitions

  1. head, foam foam that forms on top of beverages

Ancestry of “pintavaahto”, step by step

pintavaahto 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 pinta

StepLanguageWordMeaning
1Finnishpintasurface
2Proto-Finnicpintasurface; sapwood; fat
3Proto-Germanicspindazfat; lard; grease; smear; marrow
Every word from Proto-Indo-European -tus →Every word from Proto-Germanic -þuz →Every word from Proto-Germanic þwahtuz →