A literal translation of Boaz’ proposition, ” . . . you are also buying Ruth,” is in fact a misrepresentation of both Hebrew and Tonga social culture. In neither societies was a wife, or a widow, “bought,” for the “marriage present” (Hebrew mohar [Gn 34:12]; Chitonga — lobold) was in effect a gift of compensation, presented from the family/clan of the bridegroom to the family of the bride which served to seal the marriage and bind the two families together. In this particular situation, i.e., levirate succession, not even the lobola was involved; the man was simply making a public agreement to marry Ruth.

It is difficult to convey the full meaning of the original expression: “in order to restore the name of the dead to his inheritance.”
This is due to the different perspectives between the biblical and the Bantu cultures with regard to the land. The importance of preserving the “name” of the deceased through offspring begotten on his behalf is present in both, but in an African context this practice was more intimately connected with their religious beliefs; i.e., a dead man’s children had the obligation of preserving his presence in the community of the “living dead” (spirits) by “remembering” him in sacrifices and prayers. But that this child (or children) would then inherit his property so as to “keep it in the family” is a foreign notion and would thus require some additional explanation.

Source: Wendland 1987, p. 182.