Where does “zevra” come from?

zevra (Old Portuguese) comes 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 “zevra”, step by step

Step	Language	Word	Meaning
1	Vulgar Latin	eciferus	fool, wild ass, donkey; wild horse
2	Latin	equiferus	wild horse
3	Latin	equus	a horse; a steed, charger
4	Proto-Italic	ekwos	horse
5	Proto-Indo-European	h₁éḱwos	stallion, horse
6	Proto-Indo-European	h₁oh₁ḱu-	swift

Words derived from “zevra”

cebra

Every word from Proto-Indo-European h₁oh₁ḱu- →Every word from Proto-Indo-European h₁éḱwos →Every word from Proto-Italic ekwos →