Where does “austral” come from?

austral (Romanian) comes from French austral, from Latin australis, from Latin auster, from Proto-Italic *austeros.

austral (Romanian): southern, austral

Definitions

Step	Language	Word	Meaning
1	French	austral	austral
2	Latin	australis	southern; Australian; the south pole
3	Latin	auster	The south wind; south
4	Proto-Italic	*austeros	—

austral — Etymology, Origin & Word History | Etymology Explorer