Patronymic from Chobab; an Ezrachite or descendant of Zerach -- Ezrahite.
see HEBREW Chobab
H250. Ezrachi
אֶזְרָחִי adjective, of a people i.e. of family of זֶרַח, only in הָא ׳אֵיתָן 1 Kings 5:11 (ᵐ5L Ἰσραηλίτης), Psalm 89:1 (ᵐ5 id.), and 88:1 הָא ׳הֵימָן both sons of זֶרַח (1 Chronicles 2:6).