pygarg

From Latin pygargus from Ancient Greek πύγαργος (púgargos), a compound of Ancient Greek πῡγή (pūgḗ, “rump”) + ἀργός (argós, “white”).

pygarg (plural pygargs)

1. (biblical) An unidentified large animal with horns, possibly the addax, mentioned in the Bible (Deuteronomy 14:5) as one of the animals permitted for food.
2. A bird, the osprey.