Tashin

Tashin (or tajhin) is a Suagir title of rulership roughly equivalent to that of a king, although it may also be translated as "high prince" or "overlord." It is comparatively little used; most Suagir rulers, great or small, style themselves as tamirs (with various modifiers or honorifics appended to the title to reflect degrees of status). For a tamir to claim the title of tashin, and adopt the trappings of kingship, is a bold step that will likely be greeted with scorn and hostility by other chieftains unless his accomplishments amply justify it. 
When it is claimed, it is often by powerful tamirs who have gathered several other tribes (via conquest, marriage alliances, or both) into a large tribal confederation with themselves in the paramount position. In such cases, a traditional gathering of the tribal chieftains may be called to ritually confirm the tashin's rank, although since the chieftains in attendance have usually already been subordinated by the candidate, this is simply a formal recognition of already-established overlordship. 
The title of tashin also provides the basis for the honorific "Ul-Tash" (over-king, high king) used by Torkai and his heirs, and for the title "Tash-Teshivan" (king of kings) subsequently used by the Kirdan emperors.
The domain commanded by a tashin is called a tashinate (cf. tamirate). However, the geographical boundaries of a tashin's rule are often extremely vague and their "kingdom" is often really a confederation of client tribes, each with their own, often also loosely bounded, territories. Thus a "tashinate" in practice refers more to the tashin's authority over his subject groups than to a well-defined area of land.