ABAGTHA (a-băg'tha, Heb. ’ăvaghethā'). One of the seven eunuchs who served King Xerxes (Ahasuerus) as chamberlains (Esth.1.10). The king had the eunuchs bring Queen Vashti before him. Oriental kings customarily had eunuchs to supervise their harems.

ABAGTHA ə băg’ thə (אֲבַגְתָא, meaning and source of name uncertain; happy, prosperous, fortunate have been suggested from an Iranian source). One of the seven eunuchs sent by Ahasuerus, king of Persia (Xerxes, 485-465 b.c.), to bring Queen Vashti to a royal feast (Esth 1:10). The form of the name differs in the VSS.

International Standard Bible Encyclopedia (1915)

One of the seven eunuchs, or "chamberlains," of Xerxes mentioned in Es 1:10. The name is Persian, and is one of the many Persian marks in the Book of Esther.