Most of these names are Persian, and readily traceable to Old Persian roots.

And Parshandatha, and Dalphon, and Aspatha, and Poratha, and Adalia, and Aridatha, and Parmashta, and Arisai, and Aridai, and Vajezatha, the ten sons of Haman the son of Hammedatha, the enemy of the Jews, slew they,.... Along with the five hundred men, at the head of which they were:

but on the spoil laid they not their hands; though they were allowed by the edict to do it, Esther 8:11, but this they did not, that it might appear that they did not take away their lives from a covetous desire of their estates, but purely in self-defence; and they might do this, the more to ingratiate themselves to the king, to whom the goods and estates of those men would be confiscated.

Also they slew the ten sons of Haman, whose names are given, Esther 9:7-9;

(Note: The peculiar position of the names of the sons of Haman in editions of the Bible, grounded as it is upon the ancient mode of writing, must originally have been intended merely to give prominence to the names, and facilitate their computation. The later Rabbis, however, have endeavoured to discover therein some deeper meaning. This mode of writing the names has been said to be signum voti, ut a ruina sua nunquam amplius resurgant, or also a sign quod sicut hi decem filii in linea perpendiculari, unus supra alterum, suspensi fuerint. Comp. Buxtorf, Synagoga jud. pp. 157-159 of the Basle edit. 1580. What is indicated by the smaller forms of the letters ת, שׁ, and ז, in the first, seventh, and tenth names, is not known; the larger ו in the tenth may have been meant to give prominence, by the character employed, to this name as the last.)

but on the spoil they laid not their hand, though this was allowed to them, Esther 8:11, as it had been commanded to their enemies by Haman's edict, Esther 3:13, ut ostenderent, se non aliud quam vitae suae incolumitatem quaerere; hanc enim perdere volebant ii qui occidebantur. C. a Lapide.

And Parshandatha, and Dalphon, and Aspatha,

9:1-19 The enemies of the Jews hoped to have power over them by the former edict. If they had attempted nothing against the people of God, they would not themselves have suffered. The Jews, acting together, strengthened one another. Let us learn to stand fast in one spirit, and with one mind, striving together against the enemies of our souls, who endeavour to rob us of our faith, which is more precious than our lives. The Jews, to the honour of their religion, showed contempt of wordly wealth, that they might make it appear they desired nothing except their own preservation. In every case the people of God should manifest humanity and disinterestedness, frequently refusing advantages which might lawfully be obtained. The Jews celebrated their festival the day after they had finished their work. When we have received great mercies from God, we ought to be speedy in making thankful returns to him.