The name Australia (pronounced [əˈstɹæɪljə, -liə] in Australian English,) is derived from the Latin australis, 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" as the name for the continent.
A Terra Australis "land of the south" appeared on world maps from the 15th century, although it was not based on any actual surveying of such a landmass but rather on the hypothesis that continents in the Northern Hemisphere should be balanced by land in the south. This theory of balancing land is on record as early as the 5th century on maps by Macrobius.
The earliest recorded use of the word Australia in English was in 1625 in "A note of Australia del Espíritu Santo, written by Sir Richard Hakluyt", published by Samuel Purchas in Hakluytus Posthumus, a corruption of the original Spanish name "Austrialia del Espiritu Santo" (Southern-Austrian Land of the Holy Spirit) for an island in Vanuatu, in a rare combination of terms "Austral" and "Austria", the last in honour of Habsburg dynasty that reigned in Spain at those times. The Dutch adjectival form Australische was used in a Dutch book in Batavia (Jakarta) in 1638, to refer to the newly discovered lands to the south.Australia was later used in a 1693 translation of Les Aventures de Jacques Sadeur dans la Découverte et le Voyage de la Terre Australe, a 1676 French novel by Gabriel de Foigny, under the pen-name Jacques Sadeur. Referring to the entire South Pacific region, Alexander Dalrymple used it in An Historical Collection of Voyages and Discoveries in the South Pacific Ocean in 1771.