Faelnirv was an elven drink tasting similar to mulled cider mixed with mead. It was made from distilled elderberries and spun moonbeams. It was said that a strong man could travel for three days on naught else: Oromis made some enchanted faelnirv as a gift for Eragon in Eldest before he left to fight in the Battle of The Burning Plains. It gives the drinker, as Orik discovers in Eldest, the gift of loquacion. Orik, while under it's effects, proclaims it 'the besht and greatest of the elves' tricksty inventions'.