Where does “alasvaahto” come from?

alasvaahto (Ingrian) 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.

alasvaahto (Ingrian): blizzard, snowstorm

Definitions

  1. blizzard, snowstorm

Ancestry of “alasvaahto”, step by step

alasvaahto 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 Ingrian alas

StepLanguageWordMeaning
1Ingrianalas
Every word from Proto-Indo-European -tusEvery word from Proto-Germanic -þuzEvery word from Proto-Germanic þwahtuz