Where does “অস্ট্রেলিয়া” come from?

অস্ট্রেলিয়া (Bengali) comes from English Australia, from Latin terra austrālis incōgnita, from Latin auster, from Proto-Italic *austeros.

Ancestry of “অস্ট্রেলিয়া”, step by step

StepLanguageWordMeaning
1EnglishAustralia
2Latinterra austrālis incōgnita
3LatinausterThe south wind; south
4Proto-Italic*austeros
Every word from Proto-Italic *austeros