From yashar; evenness, i.e. (figuratively) prosperity or concord; also straightness, i.e. (figuratively) rectitude (only in plural with singular sense; often adverbially) -- agreement, aright, that are equal, equity, (things that are) right(-eously, things), sweetly, upright(-ly, -ness).
see HEBREW yashar
H4339. meshar
[מֵישָׁר] noun masculine evenness, uprightness, equity; — only plural: מֵשָׁרִים Proverbs 1:3; elsewhere מֵישָׁרִים Isaiah 26:7 17t.; —
1 evenness, level Isaiah 26:7, of path of righteous (in the future), figurative for free from difficulties; smoothness, of the flow of wine, ׳בְּמ Proverbs 23:31; ׳למ Cant 7:10.
2 in ethical sense, uprightness, equity, as taught in the school of wisdom Proverbs 8:6, "" צֶדֶק 1:3; 2:9; of government ׳(ב)מ Psalm 9:9; 58:2; 75:3; 96:10; 99:4; of speech Isaiah 33:15; Proverbs 23:16; of Yahweh's promises Isaiah 45:19; מ ׳רצה 1 Chronicles 29:17 have pleasure in equity; מ ׳עשׂה Daniel 11:6 make an equitable arrangement.
3 adverb rightly, with חזה Psalm 17:2; אהב Song of Solomon 1:4.