Grimm's Law

Grimm's Law, as enunciated by J. L. Grimm, is the law regulating the interchange of mute consonants in languages of Aryan origin, aspirates, flats, and sharps in the classical languages corresponding respectively to flats, sharps, and aspirates in Low German, and to sharps, aspirates, and flats in High German tongues.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Grimm, Wilhelm Karl * Grimsby
Grey Friars
Grieg, Edoard
Grierson, Sir Robert, of Lag
Griesbach, Johann Jacob
Griffin
Grillparzer, Franz
Grimaldi, Joseph
Grimm, Baron
Grimm, Jacob Ludwig
Grimm, Wilhelm Karl
Grimm's Law
Grimsby
Grindal, Edmund
Grindelwald
Gringo
Gringore
Griqualand, West and East
Griselda
Grisi, Giulia
Grisnez, Cape
Grisons