1) Dwarf 
[n] - a dwarf in one of the fairy stories of the brothers Grimm
noun a dwarf in one of the fairy stories of the brothers Grimm; tells a woman he will not hold her to a promise if she can guess his name and when she discovers it he is so furious that he destroys himself
a dwarf in a German folktale who spins flax into gold for a young woman to meet the demands of the prince she has married, on the condition that she give him her first child or else guess his name: she guesses his name and he vanishes or destroys himself in a rage.