1) Royal title 
Gurkhan was a Mongol title meaning `chief of Khans` and roughly equivalent to the older word khagan. It was held by the rulers of the Kara-Khitai in the 13th century. The title was first recorderd in the history after Yelü Dashi founded Kara-Khitan Khanate. It comes from the Mongol Gür / Kür, meaning `wide` or `general`. Christopher I. Be...