He joined up with Kerait, the chief of a local clan his father had once helped.
他与克烈惕结盟,克烈惕是他父亲曾经帮助过的当地部落的首领。
英语百科
Keraites
The Keraites (also Kerait, Kereit, Khereid ; Mongolian:Хэрэйд) were one of the five dominant Turco-Mongol tribal confederations (khanates) in the Altai-Sayan region during the 12th century. They had converted to the Church of the East (Nestorianism) in the early 11th century and are one of the possible sources of the European Prester John legend.