Lexical Definition

‎מֵישָׁר‎ mêyshâr (may-shawr') uprightness H:N-M
from ‎יָשַׁר‎

agreement, aright, that are equal, equity, (things that are) right(-eously, things), sweetly, upright(-ly, -ness).

1) evenness, uprightness, straightness, equity
1a) evenness, level, smoothness
1b) uprightness, equity
1c) rightly (as adv)

See Greek: δικαιοσύνη · εὐθέως · εὐθύς

Usage: 10 forms in 19 verses
Form Translated As     In Verse(s)
מֵישָׁרִֽים uprightness Ps.17.2 • Prov.8.6 • Prov.23.16 • Isa.45.19
מֵישָׁרִ֥ים uprightness Ps.58.1 • Ps.75.2
מֵישָׁרִ֖ים uprightness Song.1.4
מֵישָׁרִ֑ים uprightness Ps.99.4 • Dan.11.6
מֵֽישָׁרִ֑ים level paths Isa.26.7
uprightness Isa.33.15
לְמֵישָׁרִ֑ים to smoothness Song.7.9
וּמֵישָׁרִֽים and uprightness Prov.1.3
וּמֵישָׁרִ֖ים and uprightness 1Chr.29.17
וּ֝מֵישָׁרִ֗ים and uprightness Prov.2.9
בְּמֵישָׁרִֽים with smoothness Prov.23.31
with uprightness Ps.9.8 • Ps.96.10 • Ps.98.9

Brown-Driver-Briggs

[‎מֵישָׁר‎] noun masculine evenness, uprightness, equity; — only plural: ‎מֵשָׁרִים‎ Prov 1:3 elsewhere ‎מֵישָׁרִים‎ Isa 26:7 + 17 t.; —

1. evenness, level Isa 26:7, of path of righteous (in the future), figurative for free from difficulties; smoothness, of the flow of wine, ‎׳‎‎בְּמ‎ Prov 23:31 ‎׳‎‎למ‎ Song 7:10*.

2. in ethical sense, uprightness, equity, as taught in the school of wisdom Prov 8:6, || ‎צֶדֶק‎ Prov 1:3; Prov 2:9 of government ‎׳‎‎(ב)מ‎ Ps 9:9*; Ps 58:2*; Ps 75:3*; Ps 96:10; Ps 99:4 of speech Isa 33:15; Prov 23:16 of Yahweh's promises Isa 45:19 ‎׳‎‎רצה מ‎ 1Chr 29:17 have pleasure in equity; ‎׳‎‎עשׂה מ‎ Dan 11:6 make an equitable arrangement.

3. adverb rightly, with ‎חזה‎ Ps 17:2 ‎אהב‎ Song 1:4.

Brown-Driver-Briggs References

Book Refs
1 Chronicles 29:17
Psalms 9:9* · 17:2 · 58:2* · 75:3* · 96:10 · 99:4
Proverbs 1:3 · 2:9 · 8:6 · 23:16 · 23:31
Song of Solomon 1:4 · 7:10*
Isaiah 26:7 · 33:15 · 45:19
Daniel 11:6