Where does “aroseepra” come from?

aroseepra (Finnish) comes from Finnish seepra, from Swedish zebra, from Italian zebra, from Portuguese zebra, from Old Portuguese enzebro, from Old Portuguese cebrario, from Vulgar Latin eciferus, from Latin equiferus — swift.

Ancestry of “aroseepra”, step by step

aroseepra traces back through two separate lines of ancestry.

via Finnish seepra

StepLanguageWordMeaning
1Finnishseeprazebra
2Swedishzebrazebra
3Italianzebrazebra; zebra crossing
4Portuguesezebrazebra
5Old Portugueseenzebro
6Old Portuguesecebrario
7Vulgar Latineciferusfool, wild ass, donkey; wild horse
8Latinequiferuswild horse
9Latinequusa horse; a steed, charger
10Proto-Italicekwoshorse
11Proto-Indo-Europeanh₁éḱwosstallion, horse
12Proto-Indo-Europeanh₁oh₁ḱu-swift

via Finnish aro

StepLanguageWordMeaning
1Finnisharosteppe; humid or swampy meadow or plain
2Latin-lanominative feminine singular of -lus; nominative...
Every word from Proto-Indo-European h₁oh₁ḱu-Every word from Proto-Indo-European h₁éḱwosEvery word from Proto-Italic ekwos