Look up Australia in Wiktionary, the free dictionary.
The name Australia (pronounced /əˈstreɪliə/ in Australian English[6]) is derived from the Latinaustralis, meaning 'southern', and specifically from the hypothetical Terra Australis postulated in pre-modern geography. The name was popularised by the explorer Matthew Flinders from 1804, and it has been in official use since 1817, replacing "New Holland", an English translation of the Dutch name, first given by Abel Tasman in 1643 as the name for the continent.
^Cartouche of La Gran Baya de S. Philippe y S. Santiago, Prado y Tovar ca.1606-1614 (España. Ministerio de Cultura. Archivo General de Simancas).
^Gerritsen, Rupert (2013). "A note on 'Australia' or 'Austrialia'"(PDF). The Globe. 72: 23. Posesion en nombre de Su Magestad (Archivo del Museo Naval, Madrid, MS 951.