Where does “Astráil” come from?

Astráil (Irish) comes from Latin Terra Australis, from Latin auster, from Proto-Italic *austeros.

Astráil (Irish): Australia

Definitions

Step	Language	Word	Meaning
1	Latin	Terra Australis	southern land
2	Latin	auster	The south wind; south
3	Proto-Italic	*austeros	—

Astráil — Etymology, Origin & Word History | Etymology Explorer