Frost nymphs are a race that have apparently evolved from dryads, and are found in cold regions, such as Northrend.
Frost nymphs are a frosty subrace of dryads. They are very playful and frolic around the frozen woods of Northrend and have snowball fights. They also, like dryads, care deeply about their forest homes and natures splendors and will viciously protect it from any harmful force that arrives into their territories. Frost nymphs are also very friendly to those who help them and their lands and will ask for help from the toughest of travelers. They also retain a strong relation with night elves like their dryad cousins and have the same body shape of a woodland animal and a night elven woman.
The term nymph is interchangeable with dryad. Nymphs are a wilder variation.