Where does “legkovászosabb” come from?

legkovászosabb (Hungarian) comes from Hungarian kovászosabb, from Hungarian kovászos, from Hungarian kovász, from Proto-Slavic kvasъ, from Proto-Indo-European kwh₂et- — to ferment, become sour; to boil, foam.

Ancestry of “legkovászosabb”, step by step

StepLanguageWordMeaning
1Hungariankovászosabb
2Hungariankovászosleavened
3Hungariankovászleaven
4Proto-Slavickvasъleaven, fermented drink
5Proto-Indo-Europeankwh₂et-to ferment, become sour; to boil, foam
Every word from Proto-Indo-European kwh₂et-Every word from Proto-Slavic kvasъEvery word from Hungarian kovász