From the Hebrew name יִתְרוֹ (Yitro), which was derived from the Hebrew word יֶתֶר (yeter) meaning "abundance". According to the Old Testament, Jethro was a Midianite priest who sheltered Moses when he fled Egypt. He was the father of Zipporah, who became Moses's wife. A famous bearer of the name was Jethro Tull (1674-1741), an English inventor and agriculturist.