Boyd’s Bible Dictionary:
(blessed). Symbolically, Israel (Deut. 32:15; 33:5,26). Jesurun (Isa. 44:2).
Concise Bible Dictionary:
Name given to Israel, probably signifying “upright ones”; others prefer “beloved of Jehovah.” Jehovah was the “God of Jeshurun”; and Moses, “king in Jeshurun” (Deut. 32:15; Deut. 33:5,26; Isa. 44:2).
Jackson’s Dictionary of Scripture Proper Names:
the righteous one: a little righteous