Boyd’s Bible Dictionary:
(strict). A eunuch of Ahasuerus, whose plot to murder his master was discovered by Mordecai (Esther 2:21-23).
Concise Bible Dictionary:
One of the royal door-keepers who conspired against Ahasuerus: the plot was discovered by Mordecai (Esther 2:21; Esther 6:2).
Strong’s Dictionary of Hebrew Words:
Meaning:
of foreign derivation; Teresh, a eunuch of Xerxes
Jackson’s Dictionary of Scripture Proper Names:
possession: thou wilt possess
Potts’ Bible Proper Names:
Severe; driving away; rude:―a eunuch of Ahasuerus, Esth, 2:21. {Asper}