Where does “rouhentaa” come from?

rouhentaa (Finnish) comes from Finnish rouhea, from Finnish rouhia, from Proto-Finnic rouhidak, from Proto-Indo-European krus- — crust.

Ancestry of “rouhentaa”, step by step

StepLanguageWordMeaning
1Finnishrouheacoarse, crumbly
2Finnishrouhiato grind coarsely, to kibble
3Proto-Finnicrouhidakto grind, to kibble
4Proto-Indo-Europeankrus-crust
Every word from Proto-Indo-European krus- →Every word from Proto-Finnic rouhidak →Every word from Finnish rouhia →