Where does “häntähihna” come from?

häntähihna (Finnish) comes from Finnish häntä, from Proto-Finnic häntä, from Proto-Uralic čänčä.

Ancestry of “häntähihna”, step by step

häntähihna traces back through two separate lines of ancestry.

via Finnish häntä

StepLanguageWordMeaning
1Finnishhäntäa narrow tail; ogonek; Partitive form of hän
2Proto-Finnichäntätail
3Proto-Uralicčänčä

via Finnish hihna

StepLanguageWordMeaning
1Finnishhihnastrap, band; especially one that is made of...
2Proto-Finnichihnaleather belt, strap
3Lithuanianšikšna
Every word from Proto-Uralic čänčäEvery word from Proto-Finnic häntäEvery word from Finnish häntä