From BiblePortal Wikipedia

Hastings' Dictionary of the Bible [1]

Jehudi (generally = ‘a Jew,’ but appears to be a proper name in   Jeremiah 36:14;   Jeremiah 36:21;   Jeremiah 36:23 ). An officer of Jehoiakim, at whose summons Baruch read to the princes of Judah the roll of Jeremiah’s prophecies, and who was afterwards himself employed to read the roll to the king.

Smith's Bible Dictionary [2]

Jehu'di. (A Jew). Son of Nethaniah, a man employed, by the princes of Jehoiakim's court, to fetch Baruch to read Jeremiah's denunciation,  Jeremiah 36:14, and then, by the king, to fetch the volume itself and read it to him.  Jeremiah 36:21;  Jeremiah 36:23. (B.C. 605).

Fausset's Bible Dictionary [3]

The princes' ready tool in fetching Baruch to read Jeremiah's ( Jeremiah 36:14;  Jeremiah 36:21-23) denunciations; then employed by Jehoiakim to bring and read the roll, which the king cut and burned. (See Jehoiakim .)

Hawker's Poor Man's Concordance And Dictionary [4]

The servant of Jehoiakim, king of Judah, ( Jeremiah 36:14) His name signifies, the Lord is my praise.

Morrish Bible Dictionary [5]

Son of Nethaniah, and an attendant at the court of Jehoiakim.  Jeremiah 36:14-23 .

Holman Bible Dictionary [6]

 Jeremiah 36:11-32

Easton's Bible Dictionary [7]

 Jeremiah 36:14,21

International Standard Bible Encyclopedia [8]

jē̇ - hū´di ( יהוּדי , yehūdhı̄ , properly "a Jew"): An officer of King Jehoiakim (  Jeremiah 36:14 ,  Jeremiah 36:21 ,  Jeremiah 36:23 ). He was sent by the princes to summon Baruch to read the roll containing Jeremiah's prophecies to them; he afterward read them to the king, who destroyed them. His name is noteworthy, as also is that of his grandfather Cushi (i.e. "Ethiopian"), and the two are said to point to a foreign origin.

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [9]

(Hebrew Yehudi', יְהוּדַי , a Jew , as often; (Sept. Ι᾿Ουδείν v.r. Ι᾿Ουδίν , Ι᾿Ουδί , Ι᾿Ουδεί ) son of Nethaniah, sent by the princes to invite Baruch to read Jeremiah's roll to them, and who afterwards read it to the king himself ( Jeremiah 36:14;  Jeremiah 36:21). B.C. 605.