The names of the continents

Asia - we have no clue. It is he OLDEST NAME!!!

The English name "Asia" was originally a concept of Greek civilization.^[20] The place name "Asia" in various forms in a large number of modern languages is of unknown ultimate provenience. Its etymology and language of origin are uncertain. It appears to be one of the most ancient of recorded names. A number of theories have been published. English Asia can be traced through the formation of English literature to Latin literature, where it has the same form, Asia. Whether all uses and all forms of the name derive also from the Latin of the Roman Empire is much less certain. One of the first classical writers to use Asia as a name of the whole continent was Pliny.^[21

Antarctica - Opposite of North - LOL easiest name to define

The name Antarctica is the romanised version of the Greek compound word ἀνταρκτική (antarktiké), feminine of ἀνταρκτικός (antarktikós), meaning "opposite to the Arctic", "opposite to the north".

Arctic - all about the stars and constellations 

The word Arctic comes from the Greek word ἀρκτικός (arktikos), "near the Bear, northern"^[6] and that from the word ἄρκτος (arktos), meaning bear.^[7] The name refers either to the constellation Ursa Major, the "Great Bear", which is prominent in the northern portion of the celestial sphere, or to the constellation Ursa Minor, the "Little Bear", which contains Polaris, the Pole star, also known as the North Star.^[8]

Australia - LOL South Land :D 

The name Australia (pronounced [əˈstɹæɪljə, -liə] in Australian English^[24]) is derived from the Latin Terra Australis ("southern land"), a name used for a hypothetical continent in the Southern Hemisphere since ancient times.^[25] When Europeans first began visiting and mapping Australia in the 17th century, the name Terra Australis was naturally applied to the new territories.^{[N 4]}

Africa Afri was a Latin name used to refer to the inhabitants of Africa,  This name seems to have originally referred to a native Libyan tribe; [...]

 The later Muslim kingdom of Ifriqiya, located in modern-day Tunisia, also preserved a form of the name.

America - derives from Americus, the Latin version of Italian explorer Amerigo Vespucci's first name. 

^{Europe - Europa - maybe Ereb - land of the setting sun ... but the older connections are weak.}

^{Dont get me started about the continent of New Zealand.}