Where does “hupailu” come from?

hupailu (Finnish) comes from Finnish hupailla, from Finnish hupa, from Proto-Finnic hupa, from Proto-Uralic čupa.

Ancestry of “hupailu”, step by step

StepLanguageWordMeaning
1Finnishhupailla—
2Finnishhupaquickly diminishing; funny
3Proto-Finnichupalean, thin
4Proto-Uralicčupa—
Every word from Proto-Uralic čupa →Every word from Proto-Finnic hupa →Every word from Finnish hupa →