Jeshurun=“upright one” 1) a symbolic name for Israel describing her ideal character Part of Speech: noun proper masculine A Related Word by BDB/Strong’s Number: from H3474
Brown-Driver-Briggs
יְשֻׁרוּןproper name, masculine (upright one) Deuteronomy 32:15; Deuteronomy 33:5,26; Isaiah 44:2; poetic name of Israel, designating it under its ideal character,ᵐ5ὁ ἠγαπημένος, Aq Symm Theod εὐθύς, ᵑ9rectissimus, dilectus; Thes Ew§ 167 a LagBN 33 regard it as diminutive from יָשׁוּר=good little people; but no evidence that וּן§ 86 (2). 4 take as denominative=Rechtvolk; BacherZAW v, 1885, 161 ff. and Che rightly compare סֵפֶר הַיָּשָׁר (see יָשָׁר3e).
Deuteronomy 33:5 HEB: וַיְהִ֥י בִישֻׁר֖וּן מֶ֑לֶךְ בְּהִתְאַסֵּף֙ NAS: And He was king in Jeshurun, When the heads KJV: And he was king in Jeshurun, when the heads INT: become Jeshurun was king were gathered
Deuteronomy 33:26 HEB:אֵ֥ין כָּאֵ֖ל יְשֻׁר֑וּן רֹכֵ֤ב שָׁמַ֙יִם֙ NAS: like the God of Jeshurun, Who rides KJV: [There is] none like unto the God of Jeshurun, [who] rideth INT: There the God of Jeshurun rides the heavens
Isaiah 44:2 HEB:עַבְדִּ֣י יַֽעֲקֹ֔ב וִישֻׁר֖וּן בָּחַ֥רְתִּי בֽוֹ׃ NAS: My servant; And you Jeshurun whom I have chosen. KJV: my servant; and thou, Jesurun, whom I have chosen. INT: my servant Jacob Jeshurun have chosen