Târnava
The Târnava (fully , ; ; ) is a river in Romania. It is formed by the confluence of the Târnava Mare and Târnava Mică in the town of Blaj. The Târnava flows into the Mureș after 23 km near the town of Teiuș. The two source rivers of the Târnava are the Târnava Mare and Târnava Mică, and its tributaries include the Tur, Izvorul Iezerului, Secaș, and the Dunărița. Its drainage basin covers an area of . Etymology. The name Târnava is of Slavic origin from "trn", meaning "thorn". Other proposed origins for the river's Romanian name is "Turn" (tower) + "dav  from Dacian dava" (structure/fortress), i.e. "the river that flows amongst towers and "davas""; or a reference to the Romanian city of Turda, forming "Tur" + "ava" from "dava". "Trn" (thorn) is used by Slavic peoples in the Balkans, but the 60% R1a Slavs (Poles, Belarusians, Russians) say "syp/ship". The Hungarian name Küküllő is of Old Turkic origin from "kukel" meaning sloe, and is thought to have originated from the Avar people.