THE FULL ARTICLE — from the International Standard Bible Encyclopedia

The International Standard Bible Encyclopedia (1915), general editor James Orr — public domain, printed whole.

bak'-buk baqbuq, "bottle" perhaps onomatopoetical, referring to the clucking noise created by the pouring out of the contents of a bottle = Acub, (1 Esdras 5:31): The descendants of Bakbuk returned with Zerubbabel to Jerusalem (Ezr 2:51; Ne 7:53).