The Hebrew is goel redeemer, avenger. The nearest relative of a murdered person, on whom devolved the duty of avenger, was called goel haddam avenger of blood. So the goel was the nearest kinsman of a childless widow, and was required to marry her (Deu 25:5-10). It is the word used by Job in the celebrated passage Job 19:25. See, also, Rth 3:12, Rth 3:13; Rth 4:1-10.