Addo
From BiblePortal Wikipedia
Hastings' Dictionary of the Bible [1]
ADDO . The grandfather of the prophet Zechariah ( 1E Esther 6:1 ). See Iddo.
International Standard Bible Encyclopedia [2]
ad´ō (Codex Alexandrinus, Ἀδδώ , Addō̇ ; Codex Vaticanus, Ἐδδείν , Eddeı́n ) = Iddo ( Ezra 5:1; Ezra 6:14 ): The father ( Zechariah 1:1 , Zechariah 1:7 grandfather) of Zechariah the prophet (1 Esdras 6:1).
Cyclopedia of Biblical, Theological and Ecclesiastical Literature [3]
( Ἀδδώ , comp. Addon), the "father" of the prophet Zechariah ( 1 Esdras 6:1), called in the genuine text ( Ezra 5:1) IDDO (See Iddo) (q.v.).