Where does “Ástralía” come from?

Ástralía (Icelandic) comes from Latin australis, from Latin auster, from Proto-Italic *austeros.

Ancestry of “Ástralía”, step by step

StepLanguageWordMeaning
1Latinaustralissouthern; Australian; the south pole
2LatinausterThe south wind; south
3Proto-Italic*austeros
Every word from Proto-Italic *austerosEvery word from Latin austerEvery word from Latin australis