Where does “isohiirenhäntälepakko” come from?

isohiirenhäntälepakko (Finnish) comes from Finnish iso, from Finnish isä, from Proto-Finnic icä, from Proto-Uralic ićä — father.

Ancestry of “isohiirenhäntälepakko”, step by step

isohiirenhäntälepakko traces back through two separate lines of ancestry.

via Finnish iso

StepLanguageWordMeaning
1Finnishisobig; large; great
2Finnishisäfather; Father
3Proto-Finnicicäfather
4Proto-Uralicićäfather

via Finnish hiirenhäntälepakko

StepLanguageWordMeaning
1Finnishhiirenhäntälepakko—
2Finnishhäntäa narrow tail; ogonek; Partitive form of hän
3Proto-Finnichäntätail
4Proto-Uralicčänčä—
Every word from Proto-Uralic ićä →Every word from Proto-Finnic icä →Every word from Finnish isä →