A mighty man of wealth - We have already seen that some suppose Boaz to have been one of the judges of Israel; he was no doubt a man of considerable property.
A kinsman - More literally “an acquaintance”; here (and in the feminine, Rth 3:2 ) denoting the person with whom one is intimately acquainted, one‘s near relation. The next kinsman of Rth 2:20 , etc. גאל gā'al is a wholly different word.
Boaz - Commonly taken to mean, “strength is in him” (compare 1 Kings 7:21).