Int. Standard Bible Encyclopedia ARIDAI ar'-i-di, a-rid'-a-i ('aridhay: a son of Haman (Esther 9:9)): The name may be related to the Persian Hari-dayas, "delight of Hari"; the text is very uncertain.

Multi-Version Concordance Aridai (1 Occurrence) Esther 9:9 Parmashta, Arisai, Aridai, and Vaizatha, (WEB KJV JPS ASV BBE DBY WBS YLT NAS NIV)