Jehovah-tsidkenu
JEHOVAH-TSIDKENU (jē-hō'va-tsĭd-kē'nū, Jehovah is our righteousness). The symbolic name given to the king who is to rule over restored Israel (Jer.23.6) and to the state or capital (Jer.33.16).
JEHOVAH-TSIDKENU jĭ hō’ və sĭd’ kə nu (יְהוָ֥ה צִדְקֵֽנוּ, Yahweh our righteousness). The name (KJV) is employed, by Jeremiah alone, in a twofold way. It is the designation of the future Davidic king, who will rule over restored Israel (Jer 23:6). Righteousness is a divine attribute of the Messiah in providing salvation. The implication appears to be that He is our imputed righteousness (2 Cor 5:21). In the second reference (Jer 33:16), the prophet is pointing to the capital of the king, which partakes of the nature of the righteous monarch.
International Standard Bible Encyclopedia (1915)
tsid-ke’-nu, tsid’-ke-nu (yahweh tsidhqenu, "Yahweh (is) our righteousness"): The symbolic name given
(1) to the king who is to reign over the restored Israel (Jer 23:6);
(2) to the state or capital (Jer 33:16).