Where does “vaahtoamaton” come from?

vaahtoamaton (Finnish) comes from Finnish vaahdota, 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.

vaahtoamaton (Finnish): nonfoaming

Definitions

  1. nonfoaming

Ancestry of “vaahtoamaton”, step by step

vaahtoamaton traces back through two separate lines of ancestry.

via Finnish vaahdota

StepLanguageWordMeaning
1Finnishvaahdotato foam, froth; to spurge; to vapor
2Finnishvaahtofoam; head; mousse
3Proto-Finnicvaktofoam
4Proto-Germanicþwahtuzwashing, laundry
5Proto-Germanic-þuzForms result nouns from verb roots, usually from...
6Proto-Indo-European-tusDerives action nouns from verb roots

via Finnish maton

StepLanguageWordMeaning
1FinnishmatonGenitive singular form of matto
Every word from Proto-Indo-European -tusEvery word from Proto-Germanic -þuzEvery word from Proto-Germanic þwahtuz