Why Genghis khan is also called chinggis khan?

Genghis Khan is also known as Chinggis Khan, which is derived from the Mongolian pronunciation of his name. The term "Chinggis" reflects the historical and cultural context of the Mongolian language, emphasizing the leader's significance in Mongolian history. The title "Khan" means "ruler" or "leader," so both names refer to the same formidable figure who united the Mongolian tribes and established one of the largest empires in history.