'Kinsman' in the Bible

Now Naomi had a relative of her husband, a man of great wealth and influence, from the family of Elimelech, whose name was Boaz.

It is true that I am your close relative and redeemer; however, there is a relative closer [to you] than I.

Spend the night [here], and in the morning if he will redeem you, fine; let him do it. But if he does not wish to redeem you, then, as the Lord lives, I will redeem you. Lie down until the morning.”

Then Boaz went up to the city gate [where business and legal matters were settled] and sat down, and then the close relative (redeemer) of whom Boaz had spoken came by. He said to him, “Come over here, friend, and sit down.” So he came and sat down.

He said to the closest relative (redeemer), “Naomi, who has returned from the country of Moab, must sell the plot of land which belonged to our brother Elimelech.

The closest relative (redeemer) said, “I cannot redeem it for myself, because [by marrying a Moabitess] I would jeopardize my own inheritance. Take my right of redemption (purchase) yourself, because I cannot redeem it.”

So, when the closest relative (redeemer) said to Boaz, “Buy it for yourself,” he pulled off his sandal [and gave it to Boaz to confirm the agreement].

Then the women said to Naomi, “Blessed is the Lord who has not left you without a redeemer (grandson, as heir) today, and may his name become famous in Israel.