Where does “rohonpäin” come from?

rohonpäin (Ingrian) comes from Ingrian roho, from Votic roho, from Proto-Finnic rooho, from Proto-Germanic grasą, from Proto-Indo-European ǵʰreh₁- — to become green, grow; to grow; to green, to grow.

Ancestry of “rohonpäin”, step by step

rohonpäin traces back through two separate lines of ancestry.

via Ingrian roho

StepLanguageWordMeaning
1Ingrianrohograss
2Voticrohograss
3Proto-Finnicroohograss
4Proto-Germanicgrasągrass
5Proto-Indo-Europeanǵʰreh₁-to become green, grow; to grow; to green, to grow

via Ingrian pää

StepLanguageWordMeaning
1Ingrianpäähead
2Proto-Finnicpäähead
3Proto-Uralicpäŋehead
Every word from Proto-Indo-European ǵʰreh₁- →Every word from Proto-Germanic grasą →Every word from Proto-Finnic rooho →