What is "vranjina"

Vranjina ( BCS: Vrnjina/Vranjina/Врањина; ) is an island in Skadar Lake in the Montenegrin municipality of Podgorica. Vranjina is also the village on the island. Until the first half of the 18th century Vranjina, like other islands of Skadar lake, was one of the hills in the Zeta—Skadar lowlands.