King James Bible
King James Version (KJV)

Or miyshor {mee-shore'}; from yashar; a level, i.e. A plain (often used (with the article prefix) as a properly, name of certain districts); figuratively, concord; also straightness, i.e. (figuratively) justice (sometimes adverbially, justly) -- equity, even place, plain, right(-eously), (made) straight, uprightness.
see HEBREW yashar
H4334. mishor
מִישׁוֺר noun masculineJeremiah 48:8 level place, uprightness; — ׳מ Psalm 27:11 9t.; מִישֹׁר Zechariah 4:7 (see Baer) + 12 t.; —
1 level country, table-land, plain: antith. הר(יםׅ 1 Kings 20:23, 25; Zechariah 4:7; עָקֹב Isaiah 40:4 מַעֲקַשִּׁים 42:16 + שְׁפֵלָה2 Chronicles 26:10; "" עֵמֶק Jeremiah 21:13; הַמִּישׁוֺר specifically of the elevated plateau or table-land between the Arnon and Heshbon Deuteronomy 3:10; 4:43; Joshua 13:9, 16, 17, 21; 20:8; Jeremiah 48:8, 21.
2 level place (free from obstacles), figurative for place of safety, comfort, and prosperity Psalm 26:12; מ ׳ארח 27:11 מ ׳אֶרֶץ 143:10.
3 uprightness (compare מֵישָׁר 2), in government Psalm 67:5; מ ׳שֵׁבֶט 45:7; "" צֶדֶק Isaiah 11:4; שָׁלוֺם Malachi 2:6.