What is "borte"

Börte (simply Borte, also Börte Üjin; Cyrillic: Бөртэ үжин; c. 1161–1230) was the first wife of Temüjin, who became Genghis Khan, the founder of the Mongol Empire. Börte became the head of the first Court of Genghis Khan, and Grand Empress of his Empire. Little is known about the details of her early life, but she was betrothed to him at a young age, married at 17, and then kidnapped by a rival tribe. The decision by her husband to rescue her may have been one of the key decisions that started him on his path to conquer much of the known world. She gave birth to four sons and five daughters, who, along with their own descendants, were the key bloodline which further expanded the Mongol Empire.