from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. Alternative form of Chorasmia.
Sorry, no etymologies found.
Man make a rough guess that 1.25M people were killed in Khwarezm in two years-- that's 25% of 5M original inhabitants.
And as for Khwarezm, it was the home of not only the great mathematician Muhammad ibn Musa al-Khwarizmi note final -i: 'the Khwarezmian' but of the great scientist Abu'l Rayhan Muhammad ibn Ahmad al-Biruni, so it was quite the place to be from... unless Genghis Khan was in the neighborhood.
At the age of twenty-two he left Bokhara and went to Jorjan, the capital of Khwarezm where he frequented the Court of Shah
The historically proven means of dealing with the Iranian power was shown by the Mongols during their series of empire-busting conquests -- from the destruction of Khwarezm to the Abbassid Caliphate.