From BiblePortal Wikipedia

Fausset's Bible Dictionary [1]

( Genesis 10:4) Dodanim or Rodanim ( 1 Chronicles 1:7); since the Hebrew letter Daleth ( ד ) and the Hebrew letter Resh ( ר ), closely resemble One another in Hebrew, Septuagint and Samaritan versions translate "the inhabitants of Rhodes," the large island in the E. part of the Mediterranean; in Greek meaning "island of roses;" its coins are stamped with a rose. Sprung from Javan ( Ιonia , "the Greek race"), son of Japhet. Gesenius identifies them with the Dardani of Illyricum and Troy, a semi-Pelasgic race, akin to the Kittim or Chittim. Dodona, seat of the oracle in Epirus, is a kindred name.

Hastings' Dictionary of the Bible [2]

DODANIM . Named in the MT [Note: Massoretic Text.] of   Genesis 10:4 among the descendants of Javan, or Ionians. The LXX [Note: Septuagint.] and Sam. versions and the parallel passage   1 Chronicles 1:7 read Rodanim , i.e. Rhodians. Cf. the true reading of   Ezekiel 27:15 under Dedan.

J. F. McCurdy.

Smith's Bible Dictionary [3]

Dod'anim. (Leaders).  Genesis 10:4;  1 Chronicles 1:7. A family or race descended from Javan, the son of Japhet.  Genesis 10:4;  1 Chronicles 1:7. Dodanim is regarded as identical with the Dardani, who were found in historical times in Illyricum and Troy.

American Tract Society Bible Dictionary [4]

Or RODANM,  1 Chronicles 1:7 , a people descended from Japhet through Javan,  Genesis 10:4 . They are associated, by the above passage, and by dim etymological inferences, with the island of Rhodes or some location on the north coast of the Mediterranean.

Morrish Bible Dictionary [5]

Descendants of Javan, son of Japheth.  Genesis 10:4;  1 Chronicles 1:7 . In the margin the name is RODANIM, which has some manuscript authority.

Easton's Bible Dictionary [6]

 Genesis 10:4 Genesis 10 1 Chronicles 1:7

Holman Bible Dictionary [7]

 Genesis 10:4 1 Chronicles 1:7

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [8]

(Hebrews Dodanim', דֹּדָנַים , deriv. unknown; Sept. ῾Ρόδιοι , Vulg. Dodanim), a family or race descended from (the fourth son of) Javan, the son of Japheth ( Genesis 10:4). The authorities vary as to the form of the name: the Hebrew text has Dodanim in Genesis, but RODANIM ( רוֹדָנַים ) in the text of the parallel passage ( 1 Chronicles 1:7, margin

דּוֹדָנַים , Sept. again ῾Ρόδιοι [v.r. Δωδανάμ ], and Vulg. Dodanim, A.V. "Dodanim"); Dodanim appears in the Syriac, Chaldee, Vulgate, Persian, and Arabic versions, and in the Targum of Onkelos; Rodanima is supported by the Sept., the Samaritan version, and some early writers, as Eusebius and Cosmas. The weight of authority is in favor of Dodanim; the substitution of ῾Ρόδιοι , Rhodians, in the Sept. may have arisen from familiarity with that name (compare  Ezekiel 27:15, where it is again substituted for Dedan). Dodanim is regarded as identical with Dardani (Gesenius, Thesaur. page 1266), the latter, which is the original form, having been modified by the change of the liquid R into O , as in Barmilcar and Bomilcar, Hamilcar and Hamlilco (Hall. Lit. Zeit. 1841, No. 4). Thus the Targum of Jonathan, that on Chronicles, and the Jerusalem Talmud, give Dardania for Dodanim. The Dardani were found in historical times in Illyricum and Troy: the former district was regarded as their original seat. They were probably a semi-Pelasgic race, and are grouped with the Chittim in the genealogical table, as more closely related to them than to the other branches of the Pelasgic race (Knobel, Volkertafel , page 104 sq.). The similarity of the name Dodona in Epirus (Strabo , 7:327 sq.) has led to the identification of Dodanim with that place (Michaelis, Spicileg. 1:120); but a mere local designation appears too restricted for the general tenor of Genesis 10. (See Ethnology). Kalisch ( Comm. On Gen. ) identifies Dodanim with the Daunians, who occupied the coast of Apulia: he regards the name as referring to Italy generally. The wide and unexplained difference of the names, and the comparative unimportance of the Daunians, form objections to this view. Those who prefer the reading Rodanim refer it to the Greek inhabitants along the river Rhone (Bochar Phaleg , 3:6), from the original Rhodus (Tuch, Genesis page 216).

International Standard Bible Encyclopedia [9]

dō´da - nim ( דּדנים , dōdhānı̄m , "leaders"): In  Genesis 10:4 , the son of Javan, the son of Japheth. This would place the Dodanim among the Ioninns. The parallel passage  1 Chronicles 1:7 , with the Septuagint and Samaritan Pentateuch, has, however, "Rodanim," which is probably the true reading. This identifies the people with the Rhodians (compare on  Ezekiel 27:15 under Dedan ).

Kitto's Popular Cyclopedia of Biblial Literature [10]

Dod´anim, the descendants of the fourth son of Javan . Bochart and other commentators on the ethnographical sketch in Genesis 10 suppose that the first settlements of the Dodanim were in the south-west part of Asia Minor; and that settlers of this family may be traced in Thessaly and Epirus, where the name is traced in the city of Dodona and in the country of Doris. But there seems much of uncertainty in all these speculations.