Where does “jalku” come from?

jalku (Finnish) comes from Finnish jalka, from Proto-Finnic jalka, from Proto-Finno-Ugric jalka.

Ancestry of “jalku”, step by step

StepLanguageWordMeaning
1Finnishjalkafoot; leg; the lower limb of a human
2Proto-Finnicjalkaleg; foot
3Proto-Finno-Ugricjalka—
Every word from Proto-Finno-Ugric jalka →Every word from Proto-Finnic jalka →Every word from Finnish jalka →