Where does “ezebra” come from?

ezebra (Old Portuguese) comes from Old Portuguese cebrario, from Vulgar Latin eciferus, from Latin equiferus, from Latin equus, from Proto-Italic ekwos, from Proto-Indo-European h₁éḱwos, from Proto-Indo-European h₁oh₁ḱu- — swift.

Ancestry of “ezebra”, step by step

ezebra traces back through two separate lines of ancestry.

via Old Portuguese cebrario

StepLanguageWordMeaning
1Old Portuguesecebrario
2Vulgar Latineciferusfool, wild ass, donkey; wild horse
3Latinequiferuswild horse
4Latinequusa horse; a steed, charger
5Proto-Italicekwoshorse
6Proto-Indo-Europeanh₁éḱwosstallion, horse
7Proto-Indo-Europeanh₁oh₁ḱu-swift

via Old Portuguese ezebrario

StepLanguageWordMeaning
1Old Portugueseezebrario
Every word from Proto-Indo-European h₁oh₁ḱu-Every word from Proto-Indo-European h₁éḱwosEvery word from Proto-Italic ekwos