Hypatian Codex
The oldest recorded mention of the word "ukraina "dates back to the year 1187. In connection with the death of the Volodymyr Hlibovych, the ruler of Principality of Pereyaslavl which was Kyïv's southern shield against the Wild Fields, the Hypatian Codex says "Oukraina groaned for him", "o nem že Oukraina mnogo postona"). In the following decades and centuries this term was applied to fortified borderlands of different principalities of Rus' without a specific geographic fixation: Halych-Volhynia, Pskov, Ryazan etc.