Concise Bible Dictionary:
An Agagite, father of Haman (Esther 3:1, 10, &c).
Strong’s Dictionary of Hebrew Words:
Meaning:
of Persian origin; Medatha, the father of Haman
KJV Usage:
Hammedatha (including the article)
Potts’ Bible Proper Names:
A twin; measure; given by the god Hom:―father of Haman, Esth. 3:1. {Geminus}