Dwarfish is a language spoken by some Dwarves. It is not player-learnable and so is only spoken by NPCs. It can, however, be understood (or used) through the use of Tongues (for spoken) or Clarify (for written). In the past the language has also been known as Dwarvish and Dwarven. However the three variations were used inconsistently and all variations were later changed to the current spelling of Dwarfish for consistency.