Then the name of the khan of Karakhanids Dynasty 'Qadirqan' implies 'very strong Khan'.
'ill-fated', 'ill-starred', 'miserable' in Chuvash; 'bad', 'scary', 'terrible', 'nasty', 'ugly', 'bleak', 'tragic', 'dismal' in Turkish and Kumyk; 'usual', 'simple'; 'tragic'; 'mass', 'crowd' in Kazakh; 'great', 'powerful', 'severe' used for rulers' proper names of Karakhanid. For example, Qara khan means 'a great founder of Karakhanid dynasty'; in Kazakh, Karakalpak, Noghay and Uyghur languages, it also has a meaning 'cattle'.
(Shaybani Khan brought down the Timurid dynasty and established Uzbek rule in its place.) True, tribal Turks called Uzbeks did arrive with the Shaybanids, but they dwelled in the territory of Turkistan during the Timurid era, in that of the Khorazmshahs before that, during the Karakhanids and during the reigns of all the Turk khans, because they, after all, were the original Turkish people of Turkistan, right?
In Turkistan in those times the Ghaznavids, Karakhanids and Khwarazmshahs (tenth to eleventh century) ruled with might and power; they left behind a great civilization, including the magnificent scientific institution, the Ma'mun Academy, created during this period.