Most of these names are Persian, and readily traceable to Old Persian roots.
On the spoil laid they not their hand - As they might have done (see the margin reference).
Related Commentaries of Esther 9:7
Esther 9:7-10
7 And Parshandatha, and Dalphon, and Aspatha,
8 And Poratha, and Adalia, and Aridatha,
9 And Parmashta, and Arisai, and Aridai, and Vajezatha,
10 The ten sons of Haman the son of Hammedatha, the enemy of the Jews, slew they; but on the spoil laid they not their hand.