“righteousness.” The emphasis of “righteousness” here is the relation of people to each other, which is why some versions translate it as “justice” (cp. CJB; DRA; ERV; GNV; KJV; NAB; NJB; NKJ).
[For more on why “righteousness” would be translated “justice” in some versions, see commentary on Matt. 5:6 and Rom. 3:22.]