diabolo

Borrowed from French diabolo, from older diable (literally “devil”), fancifully altered after cognate Italian diavolo and/or their common source, Latin diabolus. First attested in the early 20th century. The Latin noun is from Ancient Greek διάβολος (diábolos, “devil”), itself derived from the verb διαβάλλω (diabállō, “to slander”, literally “to throw across”). The notion that this literal sense of “throw across” could be applied to the diabolo itself has led some commentators to assume a direct semantic connection, but there is no evidence suggesting that it is anything other than a coincidence.

来源：wiktionary