Jethro means in the bible: Also known as Jether or Reuel. A prince and priest from Midian, who provided Moses with a place to call home following his escape from Egypt. He later became Moses’ father-in law Ex. 3:1; 4:18; 18:1-12. Moses was presented with the Melchizedek Priesthood DC by Jethro. Moses also received practical guidance from Jethro regarding administrative delegation of responsibility (Ex. 18:13-27.
(in Bible Dictionary)