Jehovah-tsidkenu; Jehovahtsidkenu

Concise Bible Dictionary:

Name, signifying “Jehovah our righteousness,” to be given to the Lord Jesus when He reigns over restored Judah and Israel in the millennium. Jerusalem will also bear the same name (Jer. 23:6; Jer. 33:16 margin).

Jackson’s Dictionary of Scripture Proper Names:

Jehovah our righteousness