Bugean
From BiblePortal Wikipedia
Hastings' Dictionary of the Bible [1]
Bugean . A descriptive epithet applied to Haman in Ad. Est 12:6 RV [Note: Revised Version.] (AV [Note: Authorized Version.] has ‘Agagite’). Bougaios occurs in Homer ( Il . xiii. 824, Od . xviii. 79) as a term of reproach = ‘bully’ or ‘braggart.’ Whether the Sept. intended it in this sense, or as a gentilic adjective, is wholly uncertain.
International Standard Bible Encyclopedia [2]
bū̇ - jē´an , bū´jē̇ - an ( Βουγαῖος , Bougaı́os ): An epithet given to Haman in Apocrypha, Additions to Esther (12:6, the Revised Version (British and American); the King James Version has "Agagite").