Brothers Grimm

The Brothers Grimm were linguists and, according to Romana, writers of fairy tales. They developed the Law of Consonantal Shift, which stated that language changed over the course of centuries due to how the pronunciation of words changed. The Fourth Doctor brought this up to Romana when discussing how the names of the Hydrax officers had changed to Aukon, Camilla and Zargo. (TV: State of Decay)