Of Persian origin; Medatha, the father of Haman -- Hammedatha (including the article).
H4099. Medatha
הַמְּדָתָא proper name, masculine father of Haman (Persian mâh, moon (mâha, month, SpiegAPK 236) + data, given? so (written hamaodata Öttli; ᵐ5 Ἁμαδαθου (always Genitive); in Greek perhaps Μαδάτης [Μαδάτας, Μαδέτης], compare XenCyr, see 3. 41 Diodxvii,67 PottZMG 1859, 424); — הָֽאֲגָגִי הַמְּדָתָא Esther 3:1, 10; 8:5; 9:24; without האגגי 9:10.