ZERAH (זֶרַח).  Unisex.  Hebrew name meaning "dawn; the springing up of light."  Also see Serach, and Zora.

ZERAH.  According to some Egyptologists the name by which Azech-amen, king of Ethiopia, is mentioned in Hebrew history. (An Archaic Dictionary, Cooper, 1876).

ZERAH.  [Hebrew Zerahh; in pause, Zarahh = "springing up of light," "dawn"].
    (1) An Edomite "duke," son of Reuel, and grandson of Esau (Gen. xxxvi. 13, 17; 1 Chron. i. 37).
    (2) One of two twins born to Judah by Tamar, and the founder of a family—that of the Zarhites, Ezrahites, or Izrahites (Gen. xxxviii. 30—A.V. and R.V.; xlvi. 12—A.V. and R.V.; Numb. xxvi. 20; Josh. vii. 1; 1 Kings iv. 31; 1 Chron. ii. 4, 6—A.V. and R.V.; xxvii. 8, 11; Matt. i. 3—A.V. and R.V.).  He had five children—Zimri or Zabdi, Ethan, Heman, Calcol, and Dara or Darda (1 Chron. ii. 6).  Called also Zara and Zarah (q.v.).
    (3) A son of Simeon, and founder of a family—that of the Zarhites (Numb. xxvi. 13).  He is called in Gen. xlvi. 10 and Exod. vi. 15 Zohar (q.v.).
    (4) A Levite, of the family of Gershom (1 Chron. vi. 21).
    (5) An Ethiopian king, who led a vast army to attack king Asa, but was defeated with great slaughter in a battle at Mareshah (2 Chron. xiv. 8-15).  It has been generally supposed that Zerah was identical with Usarken II. or Usarken I., the fourth or third Egyptian king of the twenty-second dynasty. (The Sunday School Teacher's Bible Manual, Hunter, 1894)