prefect of the palace at Tirzah to Elah king of Israel, who was assassinated at a banquet in his house by Zimri. (1 Kings 16:9)
International Standard Bible Encyclopedia
ar'-za ('artsa'): A steward of KingElah, in whose house at TirzahZimri murdered the king at a drinking debauch. The text is not quite clear, and Arza might have been a servant of Zimri (1Ki 16:9).