Brennivín is similar to Scandinavian Akvavit, especially the Danish variety, called brændevin. In Swedish it is called brännvin, and in Norwegian brennevin. The steeping of herbs in alcohol to create Schnapps is a long-held folk tradition in all Scandinavian countries.
I knew it, nasty stuff.....in Iceland they drink this swill to wash down putrified shark.....it will grow hair on a cue ball...