Where does “hevosenhäntäorava” come from?

hevosenhäntäorava (Finnish) comes from Finnish orava, from Proto-Finnic oraba, from Proto-Uralic ora, from Proto-Indo-Iranian Hā́raH, from Proto-Indo-European h₁ólos, from Proto-Indo-European ēl- — awl, prong.

Ancestry of “hevosenhäntäorava”, step by step

hevosenhäntäorava traces back through 3 separate lines of ancestry.

via Finnish orava

StepLanguageWordMeaning
1Finnishoravasquirrel; red squirrel, Eurasian red squirrel
2Proto-Finnicorabasquirrel
3Proto-Uralicorasquirrel; awl
4Proto-Indo-IranianHā́raH—
5Proto-Indo-Europeanh₁ólosawl
6Proto-Indo-Europeanēl-awl, prong

via Finnish häntä

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

via Finnish hevonen

StepLanguageWordMeaning
1Finnishhevonenhorse, "Equus caballus"; horse; knight
2Proto-Finnichepoinenhorse
3Proto-Finnic-inen-ish, -ic, -like, -y; -en
Every word from Proto-Indo-European ēl- →Every word from Proto-Indo-European h₁ólos →Every word from Proto-Indo-Iranian Hā́raH →