Hastings' Dictionary of the Bible
LETUSHIM. One of the Dedanite tribes in N. Arabia ( Genesis 25:3 ), the others being Leummim and Asshurim (wh. see). In this verse LXX [Note: Septuagint.] adds two other tribes; but in the parallel passage, 1 Chronicles 1:32 , the sons of Dedan are omitted altogether both in MT [Note: Massoretic Text.] and in most MSS of LXX [Note: Septuagint.] . None of the three tribes has been identified.
J. F. M‘Curdy.