He was baptized as Georgius Kosúth on 12 May 1776 in Necpaly. His parents were Pavol and Zuszanna Košút. He had two brothers and one sister. The family had lived for centuries in Košúty, dating back to the 13th century when king Béla IV of Hungary granted them nobility and the feod in Turiec in 1263. The surname means in Slovak "a billy goat" and a billy goat was also in their coat of arms. The family was a typical example of provincial gentry in the Kingdom of Hungary and was kindred with other families of the local gentry in the region of Turiec and Liptov. The mother tongue of the Turiec branch of the family was Slovak and also the family archive contains only records in Slovak language together with official Latin documents. His brother László moved from Košúty to Monok and would become the father of Hungarian statesman Lajos Kossuth. Juraj Košút studied law then he returned to the family estate. On 2 November 1803, he married Anna Zolnensis; the couple had no children.
Work
His language skills, legal education and probably also the noble origin opened him many opportunities. He was an assessor in the County Court of Turiec, a lay judge in Liptov, Trenčín and Orava counties and a superintendent of Lutheran Church in Záturčie. The preacher of Záturčie was Ján Kalinčiak, a Slovak nationalist and the father of Ján Kalinčiak – a member of Štúr's movement and a representative of Slovak romantic prose. He became active in the Slovak national movement in 1842 when the leading personality of the movement Ľudovít Štúr required government's approval for publication of Slovak political newspaper. Štúr had to prove sufficient social interest and that the journal would have enough readers. Štúr initially attached a petition signed by priests and seminarists from the Diocese of Nitra, but he did not succeed. In the meantime, nobles in Turiec received information about his activities. They sent him a letter in which they promised "to bear witness" about the need for Slovak political newspaper. Surprised Štúr figured out that they were led by "Košút, the uncle of that angry man from Pest ". Košút organized petitions in several waves. The first two were signed by 152 signatories who confirmed their interest in Slovak newspaper. He also noted that he collected signatures only from one part of the county and he could collect much more if necessary. The petitions had a significant impact and according to Štúr's coworker Jozef Miloslav Hurban, they directly influenced Štúr's decision to publish his newspaper in Slovak instead of Slovakized Czech and to define a new Slovak language standard instead of Kollár's biblical Czech and Bernolák's standard based on West-Slovak dialect. The new standard was based on Central-Slovak dialects spoken also in Turiec. He began corresponding with Štúr and promised him to make every effort "for the good of his Slovak nation". In 1843, he organized the third petition signed by 675 signatories. The details about this petition are not known, but it should be signed both by Catholic and Protestant Church authorities and the secular authorities including the vice-ispán of Turiec. He promoted a similar petition in the neighboring Liptov. In 1844, the state authorities initiated steps to close the Department of the Czechoslovak Language and Literature in Pressburg. Slovak activists reacted by fundraising campaigns to save the department. Košút organized the campaign among lower nobles in Turiec, but the department was closed. Štúr was later forced to leave Pressburg and Košút donated a part of the money collected to the Slovak students who decided to move with Štúr to Levoča. Later, he supported Slovak society Tatrín which played an important role in the Slovak cultural life. In 1845, Štúr finally get a permission to publish a political newspaper and Košút contributed to the newspaper as a correspondent.
