Grimm's Law is a linguistic study written by F. Max Muller that explores the sound shifts that occurred in the Germanic languages during the transition from Proto-Indo-European to Old High German. The book is named after Jacob Grimm, who first discovered the law of consonantal shifts in the mid-19th century. Muller's work expands on Grimm's findings and provides a detailed analysis of the changes that occurred in the pronunciation of certain consonants,...