Where does “áður” come from?

áður (Faroese) comes from Old Norse áðr, from Proto-Germanic ēdra- — quickly, promptly.

áður (Faroese): before

Definitions

Step	Language	Word	Meaning
1	Old Norse	áðr	already; before, heretofore, ere; until
2	Proto-Germanic	ēdra-	quickly, promptly

áður — Etymology, Origin & Word History | Etymology Explorer