Where does “rouhelimppu” come from?

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

Ancestry of “rouhelimppu”, step by step

rouhelimppu traces back through two separate lines of ancestry.

via Finnish rouhe

StepLanguageWordMeaning
1Finnishrouhekibble
2Finnishrouhiato grind coarsely, to kibble
3Proto-Finnicrouhidakto grind, to kibble
4Proto-Indo-Europeankrus-crust

via Finnish limppu

StepLanguageWordMeaning
1Finnishlimppuround loaf of bread
2Swedishlimpaloaf of bread; a carton; a roll
Every word from Proto-Indo-European krus-Every word from Proto-Finnic rouhidakEvery word from Finnish rouhia