Deuteronomy 3:10הַמִּישֹׁר
all the cities of the plateau, all of Gilead, and all of Bashan as far as the cities of Salecah and Edrei in the kingdom of Og.
Joshua 13:9הַמִּישֹׁר
The area from Aroer on the rim of the Arnon Valley, along with the city in the middle of the valley, the whole plateau of Medeba as far as Dibon,
1 Kings 20:23בַּמִּישׁוֹר
Meanwhile, the servants of the king of Aram said to him, “Their gods are gods of the hills. That is why they prevailed over us. Instead, we should fight them on the plains; surely then we will prevail.
Psalm 26:12בְמִישׁוֹר
My feet stand on level ground; in the congregations I will bless the LORD.
Isaiah 11:4בְּמִישׁוֹר
but with righteousness He will judge the poor, and with equity He will decide for the lowly of the earth. He will strike the earth with the rod of His mouth and slay the wicked with the breath of His lips.
Jeremiah 21:13הַמִּישֹׁר
Behold, I am against you who dwell above the valley, atop the rocky plateau—declares the LORD—you who say, “Who can come against us? Who can enter our dwellings?”

Brown-Driver-Briggs

מִישׁוֹר n.m. level place, uprightness

Sources: Brown-Driver-Briggs (1906, public domain) from the Open Scriptures Hebrew Lexicon (CC BY 4.0), glosses from STEPBible TBESH (CC BY 4.0); STEPBible TAHOT (Hebrew Bible, Leningrad Codex, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.